Reaction Process: PlantCyc:PLANT_PWY-3061

menthol biosynthesis related metabolites

find 21 related metabolites which is associated with chemical reaction(pathway) menthol biosynthesis

(-)-menthol + NADP+ ⟶ (-)-menthone + H+ + NADPH

Menthol

(-)-Menthol, puriss., meets analytical specification of Ph. Eur., BP, USP, 98.0-102.0\\%

C10H20O (156.151407)


D,l-menthol is a white crystalline solid with a peppermint odor and taste. (NTP, 1992) (-)-menthol is a p-menthan-3-ol which has (1R,2S,5R)-stereochemistry. It is the most common naturally occurring enantiomer. It has a role as an antipruritic drug, an antitussive and an antispasmodic drug. It is an enantiomer of a (+)-menthol. Menthol is a covalent organic compound made synthetically or obtained from peppermint or other mint oils. Forming clear or white waxy, crystalline substance, menthol is typically solid at room temperature. (-)-Menthol is the naturally-occurring and main form of menthol, and is assigned the (1R,2S,5R) configuration. Menthol mediates anesthetic properties and anti-irritating properties locally, thus it is widely used to relieve minor throat irritations. l-Menthol is a natural product found in Punica granatum, Mentha arvensis, and other organisms with data available. Levomenthol is a levo isomer of menthol, an organic compound made synthetically or obtained from peppermint or mint oils with flavoring and local anesthetic properties. When added to pharmaceuticals and foods, menthol functions as a fortifier for peppermint flavors. It also has a counterirritant effect on skin and mucous membranes, thereby producing a local analgesic or anesthetic effect. Menthol is an alcohol produced from mint oils or prepared synthetically. Menthol is a covalent organic compound made synthetically or obtained from peppermint or other mint oils. It is a waxy, crystalline substance, clear or white in color, which is solid at room temperature and melts slightly above. The main form of menthol occurring in nature is (-)-menthol, which is assigned the (1R,2S,5R) configuration. Menthol has local anesthetic and counterirritant qualities, and it is widely used to relieve minor throat irritation. Menthol is an alcohol produced from mint oils or prepared synthetically. Menthol is a covalent organic compound made synthetically or obtained from peppermint or other mint oils. It is a waxy, crystalline substance, clear or white in color, which is solid at room temperature and melts slightly above. The main form of menthol occurring in nature is (-)-menthol, which is assigned the (1R,2S,5R) configuration. Menthol has local anesthetic and counterirritant qualities, and it is widely used to relieve minor throat irritation. Present in large amts. in peppermint oil (Mentha piperita), also in other Mentha subspecies. It is used in confectionery and perfumery. Flavouring agent A p-menthan-3-ol which has (1R,2S,5R)-stereochemistry. It is the most common naturally occurring enantiomer. C78272 - Agent Affecting Nervous System > C245 - Anesthetic Agent D003879 - Dermatologic Agents > D000982 - Antipruritics (-)-Menthol is a key component of peppermint oil that binds and activates transient receptor potential melastatin 8 (TRPM8), a Ca2+-permeable nonselective cation channel, to increase [Ca2+]i[1]. Antitumor activity[1]. (-)-Menthol is a key component of peppermint oil that binds and activates transient receptor potential melastatin 8 (TRPM8), a Ca2+-permeable nonselective cation channel, to increase [Ca2+]i[1]. Antitumor activity[1]. (-)-Menthol is a key component of peppermint oil that binds and activates transient receptor potential melastatin 8 (TRPM8), a Ca2+-permeable nonselective cation channel, to increase [Ca2+]i[1]. Antitumor activity[1]. (-)-Menthol is a key component of peppermint oil that binds and activates transient receptor potential melastatin 8 (TRPM8), a Ca2+-permeable nonselective cation channel, to increase [Ca2+]i[1]. Antitumor activity[1]. DL-Menthol is a relative configuration of (-)-Menthol. DL-Menthol relates to the activation of GABAA receptor[1]. DL-Menthol is a relative configuration of (-)-Menthol. DL-Menthol relates to the activation of GABAA receptor[1]. DL-Menthol is a relative configuration of (-)-Menthol. DL-Menthol relates to the activation of GABAA receptor[1]. Menthol is a natural analgesic compound. Menthol could cause a feeling of coolness due to stimulation of ‘cold’ receptors by inhibiting Ca++ currents of neuronal membranes[1]. Menthol is a natural analgesic compound. Menthol could cause a feeling of coolness due to stimulation of ‘cold’ receptors by inhibiting Ca++ currents of neuronal membranes[1].

   

Pulegone

(5R)-5-methyl-2-(propan-2-ylidene)cyclohexan-1-one

C10H16O (152.12010859999998)


A p-menthane monoterpenoid that is cyclohexan-1-one substituted by a methyl group at position 5 and a propan-2-ylidene group at position 2. Occurs in oils of Mentha subspecies, Hedeoma pulegioides and many other essential oils. Fragrance and flavour ingredient. (R)-p-Menth-4(8)-en-3-one is found in many foods, some of which are blackcurrant, pepper (c. frutescens), spearmint, and red bell pepper. Pulegone, the major chemical constituent of Nepeta catariaessential oil which is an aromatic herb, is one of avian repellents[1]. The molecular target for the repellent action of Pulegone in avian species is nociceptive TRP ankyrin 1 (TRPA1). Pulegone stimulates both TRPM8 and TRPA1 channel in chicken sensory neurons and suppresses the former but not the latter at high concentrations[2]. Pulegone, the major chemical constituent of Nepeta catariaessential oil which is an aromatic herb, is one of avian repellents[1]. The molecular target for the repellent action of Pulegone in avian species is nociceptive TRP ankyrin 1 (TRPA1). Pulegone stimulates both TRPM8 and TRPA1 channel in chicken sensory neurons and suppresses the former but not the latter at high concentrations[2].

   

(-)-Menthone

InChI=1/C10H18O/c1-7(2)9-5-4-8(3)6-10(9)11/h7-9H,4-6H2,1-3H3/t8-,9+/m1/s

C10H18O (154.1357578)


(-)-menthone, also known as P-menthan-3-one or (2s,5r)-2-isopropyl-5-methylcyclohexanone, is a member of the class of compounds known as menthane monoterpenoids. Menthane monoterpenoids are monoterpenoids with a structure based on the o-, m-, or p-menthane backbone. P-menthane consists of the cyclohexane ring with a methyl group and a (2-methyl)-propyl group at the 1 and 4 ring position, respectively. The o- and m- menthanes are much rarer, and presumably arise by alkyl migration of p-menthanes. Thus, (-)-menthone is considered to be an isoprenoid lipid molecule (-)-menthone is practically insoluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). (-)-menthone is a fresh, green, and minty tasting compound and can be found in a number of food items such as lemon, kai-lan, babassu palm, and linden, which makes (-)-menthone a potential biomarker for the consumption of these food products (-)-menthone exists in all eukaryotes, ranging from yeast to humans. (-)-Menthone, also known as (1R,4S)-menthone or L-menthone, belongs to the class of organic compounds known as menthane monoterpenoids. These are monoterpenoids with a structure based on the o-, m-, or p-menthane backbone. P-menthane consists of the cyclohexane ring with a methyl group and a (2-methyl)-propyl group at the 1 and 4 ring position, respectively. The o- and m- menthanes are much rarer, and presumably arise by alkyl migration of p-menthanes. (-)-Menthone is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. Thus, (-)-menthone is considered to be an isoprenoid lipid molecule. (-)-menthone is a menthone that is cyclohexanone substituted by a methyl and an isopropyl group at positions 5 and 2 respectively (the 2S,5R-stereoisomer). It is an enantiomer of a (+)-menthone. Menthone is a natural product found in Xylopia aromatica, Hedeoma multiflora, and other organisms with data available. Menthone is a metabolite found in or produced by Saccharomyces cerevisiae. A menthone that is cyclohexanone substituted by a methyl and an isopropyl group at positions 5 and 2 respectively (the 2S,5R-stereoisomer). (-)-Menthone is a monoterpene component of the essential oil of maturing peppermint. (+)-Neomenthyl-β-d-glucoside is a metabolite of (-)-Menthone[1].Mortality of two biological forms of Anopheles stephensi(larvae) exposed to about 45 ppm (-)-Menthone is 27.67\\\\\\% and 94.92\\\\\\%. [2] (-)-Menthone is a monoterpene component of the essential oil of maturing peppermint. (+)-Neomenthyl-β-d-glucoside is a metabolite of (-)-Menthone[1].Mortality of two biological forms of Anopheles stephensi(larvae) exposed to about 45 ppm (-)-Menthone is 27.67\\\\\% and 94.92\\\\\%. [2] (-)-Menthone is a monoterpene component of the essential oil of maturing peppermint. (+)-Neomenthyl-β-d-glucoside is a metabolite of (-)-Menthone[1].Mortality of two biological forms of Anopheles stephensi(larvae) exposed to about 45 ppm (-)-Menthone is 27.67\\\\% and 94.92\\\\%. [2] (-)-Menthone is a monoterpene component of the essential oil of maturing peppermint. (+)-Neomenthyl-β-d-glucoside is a metabolite of (-)-Menthone[1].Mortality of two biological forms of Anopheles stephensi(larvae) exposed to about 45 ppm (-)-Menthone is 27.67\\\% and 94.92\\\%. [2] Menthone, a monoterpene extracted from plants and Mentha oil with strong antioxidant properties. Menthone is a main volatile component of the essential oil, and has anti-Inflammatory properties in Schistosoma mansoni Infection[1][2]. Menthone, a monoterpene extracted from plants and Mentha oil with strong antioxidant properties. Menthone is a main volatile component of the essential oil, and has anti-Inflammatory properties in Schistosoma mansoni Infection[1][2].

   

Water

oxidane

H2O (18.0105642)


Water is a chemical substance that is essential to all known forms of life. It appears colorless to the naked eye in small quantities, though it is actually slightly blue in color. It covers 71\\% of Earths surface. Current estimates suggest that there are 1.4 billion cubic kilometers (330 million m3) of it available on Earth, and it exists in many forms. It appears mostly in the oceans (saltwater) and polar ice caps, but it is also present as clouds, rain water, rivers, freshwater aquifers, lakes, and sea ice. Water in these bodies perpetually moves through a cycle of evaporation, precipitation, and runoff to the sea. Clean water is essential to human life. In many parts of the world, it is in short supply. From a biological standpoint, water has many distinct properties that are critical for the proliferation of life that set it apart from other substances. It carries out this role by allowing organic compounds to react in ways that ultimately allow replication. All known forms of life depend on water. Water is vital both as a solvent in which many of the bodys solutes dissolve and as an essential part of many metabolic processes within the body. Metabolism is the sum total of anabolism and catabolism. In anabolism, water is removed from molecules (through energy requiring enzymatic chemical reactions) in order to grow larger molecules (e.g. starches, triglycerides and proteins for storage of fuels and information). In catabolism, water is used to break bonds in order to generate smaller molecules (e.g. glucose, fatty acids and amino acids to be used for fuels for energy use or other purposes). Water is thus essential and central to these metabolic processes. Water is also central to photosynthesis and respiration. Photosynthetic cells use the suns energy to split off waters hydrogen from oxygen. Hydrogen is combined with CO2 (absorbed from air or water) to form glucose and release oxygen. All living cells use such fuels and oxidize the hydrogen and carbon to capture the suns energy and reform water and CO2 in the process (cellular respiration). Water is also central to acid-base neutrality and enzyme function. An acid, a hydrogen ion (H+, that is, a proton) donor, can be neutralized by a base, a proton acceptor such as hydroxide ion (OH-) to form water. Water is considered to be neutral, with a pH (the negative log of the hydrogen ion concentration) of 7. Acids have pH values less than 7 while bases have values greater than 7. Stomach acid (HCl) is useful to digestion. However, its corrosive effect on the esophagus during reflux can temporarily be neutralized by ingestion of a base such as aluminum hydroxide to produce the neutral molecules water and the salt aluminum chloride. Human biochemistry that involves enzymes usually performs optimally around a biologically neutral pH of 7.4. (Wikipedia). Water, also known as purified water or dihydrogen oxide, is a member of the class of compounds known as homogeneous other non-metal compounds. Homogeneous other non-metal compounds are inorganic non-metallic compounds in which the largest atom belongs to the class of other nonmetals. Water can be found in a number of food items such as caraway, oxheart cabbage, alaska wild rhubarb, and japanese walnut, which makes water a potential biomarker for the consumption of these food products. Water can be found primarily in most biofluids, including ascites Fluid, blood, cerebrospinal fluid (CSF), and lymph, as well as throughout all human tissues. Water exists in all living species, ranging from bacteria to humans. In humans, water is involved in several metabolic pathways, some of which include cardiolipin biosynthesis CL(20:4(5Z,8Z,11Z,14Z)/18:0/20:4(5Z,8Z,11Z,14Z)/18:2(9Z,12Z)), cardiolipin biosynthesis cl(i-13:0/i-15:0/i-20:0/i-24:0), cardiolipin biosynthesis CL(18:0/18:0/20:4(5Z,8Z,11Z,14Z)/22:5(7Z,10Z,13Z,16Z,19Z)), and cardiolipin biosynthesis cl(a-13:0/i-18:0/i-13:0/i-19:0). Water is also involved in several metabolic disorders, some of which include de novo triacylglycerol biosynthesis tg(i-21:0/i-13:0/21:0), de novo triacylglycerol biosynthesis tg(22:0/20:0/i-20:0), de novo triacylglycerol biosynthesis tg(a-21:0/i-20:0/i-14:0), and de novo triacylglycerol biosynthesis tg(i-21:0/a-17:0/i-12:0). Water is a drug which is used for diluting or dissolving drugs for intravenous, intramuscular or subcutaneous injection, according to instructions of the manufacturer of the drug to be administered [fda label]. Water plays an important role in the world economy. Approximately 70\\% of the freshwater used by humans goes to agriculture. Fishing in salt and fresh water bodies is a major source of food for many parts of the world. Much of long-distance trade of commodities (such as oil and natural gas) and manufactured products is transported by boats through seas, rivers, lakes, and canals. Large quantities of water, ice, and steam are used for cooling and heating, in industry and homes. Water is an excellent solvent for a wide variety of chemical substances; as such it is widely used in industrial processes, and in cooking and washing. Water is also central to many sports and other forms of entertainment, such as swimming, pleasure boating, boat racing, surfing, sport fishing, and diving .

   

Oxygen

Molecular oxygen

O2 (31.98983)


Oxygen is the third most abundant element in the universe after hydrogen and helium and the most abundant element by mass in the Earths crust. Diatomic oxygen gas constitutes 20.9\\% of the volume of air. All major classes of structural molecules in living organisms, such as proteins, carbohydrates, and fats, contain oxygen, as do the major inorganic compounds that comprise animal shells, teeth, and bone. Oxygen in the form of O2 is produced from water by cyanobacteria, algae and plants during photosynthesis and is used in cellular respiration for all living organisms. Green algae and cyanobacteria in marine environments provide about 70\\% of the free oxygen produced on earth and the rest is produced by terrestrial plants. Oxygen is used in mitochondria to help generate adenosine triphosphate (ATP) during oxidative phosphorylation. For animals, a constant supply of oxygen is indispensable for cardiac viability and function. To meet this demand, an adult human, at rest, inhales 1.8 to 2.4 grams of oxygen per minute. This amounts to more than 6 billion tonnes of oxygen inhaled by humanity per year. At a resting pulse rate, the heart consumes approximately 8-15 ml O2/min/100 g tissue. This is significantly more than that consumed by the brain (approximately 3 ml O2/min/100 g tissue) and can increase to more than 70 ml O2/min/100 g myocardial tissue during vigorous exercise. As a general rule, mammalian heart muscle cannot produce enough energy under anaerobic conditions to maintain essential cellular processes; thus, a constant supply of oxygen is indispensable to sustain cardiac function and viability. However, the role of oxygen and oxygen-associated processes in living systems is complex, and they and can be either beneficial or contribute to cardiac dysfunction and death (through reactive oxygen species). Reactive oxygen species (ROS) are a family of oxygen-derived free radicals that are produced in mammalian cells under normal and pathologic conditions. Many ROS, such as the superoxide anion (O2-)and hydrogen peroxide (H2O2), act within blood vessels, altering mechanisms mediating mechanical signal transduction and autoregulation of cerebral blood flow. Reactive oxygen species are believed to be involved in cellular signaling in blood vessels in both normal and pathologic states. The major pathway for the production of ROS is by way of the one-electron reduction of molecular oxygen to form an oxygen radical, the superoxide anion (O2-). Within the vasculature there are several enzymatic sources of O2-, including xanthine oxidase, the mitochondrial electron transport chain, and nitric oxide (NO) synthases. Studies in recent years, however, suggest that the major contributor to O2- levels in vascular cells is the membrane-bound enzyme NADPH-oxidase. Produced O2- can react with other radicals, such as NO, or spontaneously dismutate to produce hydrogen peroxide (H2O2). In cells, the latter reaction is an important pathway for normal O2- breakdown and is usually catalyzed by the enzyme superoxide dismutase (SOD). Once formed, H2O2 can undergo various reactions, both enzymatic and nonenzymatic. The antioxidant enzymes catalase and glutathione peroxidase act to limit ROS accumulation within cells by breaking down H2O2 to H2O. Metabolism of H2O2 can also produce other, more damaging ROS. For example, the endogenous enzyme myeloperoxidase uses H2O2 as a substrate to form the highly reactive compound hypochlorous acid. Alternatively, H2O2 can undergo Fenton or Haber-Weiss chemistry, reacting with Fe2+/Fe3+ ions to form toxic hydroxyl radicals (-.OH). (PMID: 17027622, 15765131) [HMDB]. Oxygen is found in many foods, some of which are soy bean, watermelon, sweet basil, and spinach. Oxygen is the third most abundant element in the universe after hydrogen and helium and the most abundant element by mass in the Earths crust. Diatomic oxygen gas constitutes 20.9\\% of the volume of air. All major classes of structural molecules in living organisms, such as proteins, carbohydrates, and fats, contain oxygen, as do the major inorganic compounds that comprise animal shells, teeth, and bone. Oxygen in the form of O2 is produced from water by cyanobacteria, algae and plants during photosynthesis and is used in cellular respiration for all living organisms. Green algae and cyanobacteria in marine environments provide about 70\\% of the free oxygen produced on earth and the rest is produced by terrestrial plants. Oxygen is used in mitochondria to help generate adenosine triphosphate (ATP) during oxidative phosphorylation. For animals, a constant supply of oxygen is indispensable for cardiac viability and function. To meet this demand, an adult human, at rest, inhales 1.8 to 2.4 grams of oxygen per minute. This amounts to more than 6 billion tonnes of oxygen inhaled by humanity per year. At a resting pulse rate, the heart consumes approximately 8-15 ml O2/min/100 g tissue. This is significantly more than that consumed by the brain (approximately 3 ml O2/min/100 g tissue) and can increase to more than 70 ml O2/min/100 g myocardial tissue during vigorous exercise. As a general rule, mammalian heart muscle cannot produce enough energy under anaerobic conditions to maintain essential cellular processes; thus, a constant supply of oxygen is indispensable to sustain cardiac function and viability. However, the role of oxygen and oxygen-associated processes in living systems is complex, and they and can be either beneficial or contribute to cardiac dysfunction and death (through reactive oxygen species). Reactive oxygen species (ROS) are a family of oxygen-derived free radicals that are produced in mammalian cells under normal and pathologic conditions. Many ROS, such as the superoxide anion (O2-)and hydrogen peroxide (H2O2), act within blood vessels, altering mechanisms mediating mechanical signal transduction and autoregulation of cerebral blood flow. Reactive oxygen species are believed to be involved in cellular signaling in blood vessels in both normal and pathologic states. The major pathway for the production of ROS is by way of the one-electron reduction of molecular oxygen to form an oxygen radical, the superoxide anion (O2-). Within the vasculature there are several enzymatic sources of O2-, including xanthine oxidase, the mitochondrial electron transport chain, and nitric oxide (NO) synthases. Studies in recent years, however, suggest that the major contributor to O2- levels in vascular cells is the membrane-bound enzyme NADPH-oxidase. Produced O2- can react with other radicals, such as NO, or spontaneously dismutate to produce hydrogen peroxide (H2O2). In cells, the latter reaction is an important pathway for normal O2- breakdown and is usually catalyzed by the enzyme superoxide dismutase (SOD). Once formed, H2O2 can undergo various reactions, both enzymatic and nonenzymatic. The antioxidant enzymes catalase and glutathione peroxidase act to limit ROS accumulation within cells by breaking down H2O2 to H2O. Metabolism of H2O2 can also produce other, more damaging ROS. For example, the endogenous enzyme myeloperoxidase uses H2O2 as a substrate to form the highly reactive compound hypochlorous acid. Alternatively, H2O2 can undergo Fenton or Haber-Weiss chemistry, reacting with Fe2+/Fe3+ ions to form toxic hydroxyl radicals (-.OH). (PMID: 17027622, 15765131). V - Various > V03 - All other therapeutic products > V03A - All other therapeutic products > V03AN - Medical gases

   

Pyrophosphate

phosphono dihydrogen phosphate

H4O7P2 (177.9432294)


The anion, the salts, and the esters of pyrophosphoric acid are called pyrophosphates. The pyrophosphate anion is abbreviated PPi and is formed by the hydrolysis of ATP into AMP in cells. This hydrolysis is called pyrophosphorolysis. The pyrophosphate anion has the structure P2O74-, and is an acid anhydride of phosphate. It is unstable in aqueous solution and rapidly hydrolyzes into inorganic phosphate. Pyrophosphate is an osteotoxin (arrests bone development) and an arthritogen (promotes arthritis). It is also a metabotoxin (an endogenously produced metabolite that causes adverse health affects at chronically high levels). Chronically high levels of pyrophosphate are associated with hypophosphatasia. Hypophosphatasia (also called deficiency of alkaline phosphatase or phosphoethanolaminuria) is a rare, and sometimes fatal, metabolic bone disease. Hypophosphatasia is associated with a molecular defect in the gene encoding tissue non-specific alkaline phosphatase (TNSALP). TNSALP is an enzyme that is tethered to the outer surface of osteoblasts and chondrocytes. TNSALP hydrolyzes several substances, including inorganic pyrophosphate (PPi) and pyridoxal 5-phosphate (PLP), a major form of vitamin B6. When TSNALP is low, inorganic pyrophosphate (PPi) accumulates outside of cells and inhibits the formation of hydroxyapatite, one of the main components of bone, causing rickets in infants and children and osteomalacia (soft bones) in adults. Vitamin B6 must be dephosphorylated by TNSALP before it can cross the cell membrane. Vitamin B6 deficiency in the brain impairs synthesis of neurotransmitters which can cause seizures. In some cases, a build-up of calcium pyrophosphate dihydrate crystals in the joints can cause pseudogout. COVID info from WikiPathways Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS

   

Isopiperitenol

(-)-trans-Isopiperitenol

C10H16O (152.12010859999998)


   

(-)-trans-Isopulegone

(2R-trans)-5-methyl-2-(1-methylethenyl)-cyclohexanone

C10H16O (152.12010859999998)


(-)-trans-Isopulegone is found in fats and oils. (-)-trans-Isopulegone is a flavouring ingredient. It is isolated from oil of American pennyroyal (Hedeoma pulegioides), Mentha species and others, usually with Pulegon Flavouring ingredient. Isolated from oil of American pennyroyal (Hedeoma pulegioides), Mentha subspecies and others, usually with Pulegone. (-)-trans-Isopulegone is found in fats and oils.

   

(+)-Limonene

(4R)-1-Methyl-4-(prop-1-en-2-yl)cyclohex-1-ene

C10H16 (136.1251936)


(+)-Limonene, also known as d-limonene, is a naturally occurring monoterpene which is the major component in orange oil. Currently, (+)-limonene is widely used as a flavour and fragrance and is listed to be generally recognized as safe in food by the Food and Drug Administration (21 CFR 182.60 in the Code of Federal Regulations, U.S.A.). Recently, however, (+)-limonene has been shown to cause a male rat-specific kidney toxicity referred to as hyaline droplet nephropathy. Furthermore, chronic exposure to (+)-limonene causes a significant incidence of renal tubular tumours exclusively in male rats. Although (+)-limonene is not carcinogenic in female rats or male and female mice given much higher dosages, the male rat-specific nephrocarcinogenicity of (+)-limonene may raise some concern regarding the safety of (+)-limonene for human consumption. A considerable body of scientific data has indicated that the renal toxicity of (+)-limonene results from the accumulation of a protein, alpha 2u-globulin, in male rat kidney proximal tubule lysosomes. This protein is synthesized exclusively by adult male rats. Other species, including humans, synthesize proteins that share significant homology with alpha 2u-globulin. However, none of these proteins, including the mouse equivalent of alpha 2u-globulin, can produce this toxicity, indicating a unique specificity for alpha 2u-globulin. With chronic exposure to (+)-limonene, the hyaline droplet nephropathy progresses and the kidney shows tubular cell necrosis, granular cast formation at the corticomedullary junction, and compensatory cell proliferation. Both (+)-limonene and cis-d-limonene-1,2-oxide (the major metabolite involved in this toxicity) are negative in vitro mutagenicity screens. Therefore, the toxicity-related renal cell proliferation is believed to be integrally involved in the carcinogenicity of (+)-limonene as persistent elevations in renal cell proliferation may increase fixation of spontaneously altered DNA or serve to promote spontaneously initiated cells. The scientific data demonstrates that the tumorigenic activity of (+)-limonene in male rats is not relevant to humans. The three major lines of evidence supporting the human safety of (+)-limonene are (1) the male rat specificity of the nephrotoxicity and carcinogenicity; (2) the pivotal role that alpha 2u-globulin plays in the toxicity, as evidenced by the complete lack of toxicity in other species despite the presence of structurally similar proteins; and (3) the lack of genotoxicity of both (+)-limonene and d-limonene-1,2-oxide, supporting the concept of a nongenotoxic mechanism, namely, sustained renal cell proliferation (PMID:2024047). (4r)-limonene, also known as (+)-4-isopropenyl-1-methylcyclohexene or (R)-1-methyl-4-(1-methylethenyl)cyclohexene, is a member of the class of compounds known as menthane monoterpenoids. Menthane monoterpenoids are monoterpenoids with a structure based on the o-, m-, or p-menthane backbone. P-menthane consists of the cyclohexane ring with a methyl group and a (2-methyl)-propyl group at the 1 and 4 ring position, respectively. The o- and m- menthanes are much rarer, and presumably arise by alkyl migration of p-menthanes. Thus, (4r)-limonene is considered to be an isoprenoid lipid molecule (4r)-limonene can be found in sweet marjoram, which makes (4r)-limonene a potential biomarker for the consumption of this food product (4r)-limonene can be found primarily in saliva.

   

(+)-Neomenthol

(1S,2S,5R)-5-Methyl-2-(propan-2-yl)cyclohexan-1-ol

C10H20O (156.151407)


Constituent of Japanese peppermint oil. Flavouring ingredient. (+)-Neomenthol is found in many foods, some of which are yellow bell pepper, broccoli, spearmint, and sweet orange. (+)-Neomenthol is found in cabbage. (+)-Neomenthol is a constituent of Japanese peppermint oil. (+)-Neomenthol is a flavouring ingredient (+)-Neomenthol is a potent miticide. (+)-Neomenthol shows acaricidal activitie with LD50 values of 0.32, 0.256 μg/mL for Dermatophagoides farinae and Dermatophagoides pteronyssinus, respectively[1]. (+)-Neomenthol is a potent miticide. (+)-Neomenthol shows acaricidal activitie with LD50 values of 0.32, 0.256 μg/mL for Dermatophagoides farinae and Dermatophagoides pteronyssinus, respectively[1]. DL-Menthol is a relative configuration of (-)-Menthol. DL-Menthol relates to the activation of GABAA receptor[1]. DL-Menthol is a relative configuration of (-)-Menthol. DL-Menthol relates to the activation of GABAA receptor[1]. DL-Menthol is a relative configuration of (-)-Menthol. DL-Menthol relates to the activation of GABAA receptor[1].

   

Hydrogen Ion

Hydrogen cation

H+ (1.0078246)


Hydrogen ion, also known as proton or h+, is a member of the class of compounds known as other non-metal hydrides. Other non-metal hydrides are inorganic compounds in which the heaviest atom bonded to a hydrogen atom is belongs to the class of other non-metals. Hydrogen ion can be found in a number of food items such as lowbush blueberry, groundcherry, parsley, and tarragon, which makes hydrogen ion a potential biomarker for the consumption of these food products. Hydrogen ion exists in all living organisms, ranging from bacteria to humans. In humans, hydrogen ion is involved in several metabolic pathways, some of which include cardiolipin biosynthesis cl(i-13:0/a-25:0/a-21:0/i-15:0), cardiolipin biosynthesis cl(a-13:0/a-17:0/i-13:0/a-25:0), cardiolipin biosynthesis cl(i-12:0/i-13:0/a-17:0/a-15:0), and cardiolipin biosynthesis CL(16:1(9Z)/22:5(4Z,7Z,10Z,13Z,16Z)/18:1(11Z)/22:5(7Z,10Z,13Z,16Z,19Z)). Hydrogen ion is also involved in several metabolic disorders, some of which include de novo triacylglycerol biosynthesis TG(20:3(8Z,11Z,14Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:5(7Z,10Z,13Z,16Z,19Z)), de novo triacylglycerol biosynthesis TG(18:2(9Z,12Z)/20:0/20:4(5Z,8Z,11Z,14Z)), de novo triacylglycerol biosynthesis TG(18:4(6Z,9Z,12Z,15Z)/18:3(9Z,12Z,15Z)/18:4(6Z,9Z,12Z,15Z)), and de novo triacylglycerol biosynthesis TG(24:0/20:5(5Z,8Z,11Z,14Z,17Z)/24:0). A hydrogen ion is created when a hydrogen atom loses or gains an electron. A positively charged hydrogen ion (or proton) can readily combine with other particles and therefore is only seen isolated when it is in a gaseous state or a nearly particle-free space. Due to its extremely high charge density of approximately 2×1010 times that of a sodium ion, the bare hydrogen ion cannot exist freely in solution as it readily hydrates, i.e., bonds quickly. The hydrogen ion is recommended by IUPAC as a general term for all ions of hydrogen and its isotopes. Depending on the charge of the ion, two different classes can be distinguished: positively charged ions and negatively charged ions . Hydrogen ion is recommended by IUPAC as a general term for all ions of hydrogen and its isotopes. Depending on the charge of the ion, two different classes can be distinguished: positively charged ions and negatively charged ions. Under aqueous conditions found in biochemistry, hydrogen ions exist as the hydrated form hydronium, H3O+, but these are often still referred to as hydrogen ions or even protons by biochemists. [Wikipedia])

   

Menthofuran

(+)-Menthofuran

C10H14O (150.1044594)


A menthofuran that is 4,5,6,7-tetrahydro-1-benzofuran substituted by methyl groups at positions 3 and 6 (the 6R-enantiomer). (r)-menthofuran, also known as 4,5,6,7-tetrahydro-3,6-dimethylbenzofuran or 3,9-epoxy-P-mentha-3,8-diene, is a member of the class of compounds known as aromatic monoterpenoids. Aromatic monoterpenoids are monoterpenoids containing at least one aromatic ring (r)-menthofuran is practically insoluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). (r)-menthofuran is a coffee, earthy, and musty tasting compound found in herbs and spices, mentha (mint), and orange mint, which makes (r)-menthofuran a potential biomarker for the consumption of these food products (r)-menthofuran can be found primarily in saliva.

   

(-)-Isopiperitenone

(-)-Isopiperitenone

C10H14O (150.1044594)


   

iso-Mentone

(±)-Isomenthone

C10H18O (154.1357578)


Flavouring ingredient. (±)-Isomenthone is found in many foods, some of which are blackcurrant, orange mint, peppermint, and spearmint. (+)-Isomenthone is an isomenthone isolated from Ziziphora clinopodioides Lam.. (+)-Isomenthone is an isomer of L-Menthone[1][2]. (+)-Isomenthone is an isomenthone isolated from Ziziphora clinopodioides Lam.. (+)-Isomenthone is an isomer of L-Menthone[1][2]. (+)-Isomenthone is an isomenthone isolated from Ziziphora clinopodioides Lam.. (+)-Isomenthone is an isomer of L-Menthone[1][2]. (+)-Isomenthone is an isomenthone isolated from Ziziphora clinopodioides Lam.. (+)-Isomenthone is an isomer of L-Menthone[1][2].

   

(+)-Neoisomenthol

(1alpha,2alpha,5alpha)-5-methyl-2-(1-methylethyl)cyclohexanol

C10H20O (156.151407)


(+)-Neoisomenthol is found in many essential oils [CCD]. Found in many essential oils [CCD] DL-Menthol is a relative configuration of (-)-Menthol. DL-Menthol relates to the activation of GABAA receptor[1]. DL-Menthol is a relative configuration of (-)-Menthol. DL-Menthol relates to the activation of GABAA receptor[1]. DL-Menthol is a relative configuration of (-)-Menthol. DL-Menthol relates to the activation of GABAA receptor[1].

   

(+)-Neomenthol

(1S,2S,5R)-5-methyl-2-propan-2-ylcyclohexan-1-ol

C10H20O (156.151407)


D,l-menthol is a white crystalline solid with a peppermint odor and taste. (NTP, 1992) (+)-menthol is a p-menthan-3-ol which has (1S,2R,5S)-stereochemistry. In contrast to (-)-menthol, the (+)-enantiomer occurs only rarely in nature. It is an enantiomer of a (-)-menthol. (+)-Menthol is a natural product found in Diaporthe amygdali with data available. A p-menthan-3-ol which has (1S,2R,5S)-stereochemistry. In contrast to (-)-menthol, the (+)-enantiomer occurs only rarely in nature. C78272 - Agent Affecting Nervous System > C245 - Anesthetic Agent D003879 - Dermatologic Agents > D000982 - Antipruritics (-)-Menthol is a key component of peppermint oil that binds and activates transient receptor potential melastatin 8 (TRPM8), a Ca2+-permeable nonselective cation channel, to increase [Ca2+]i[1]. Antitumor activity[1]. (-)-Menthol is a key component of peppermint oil that binds and activates transient receptor potential melastatin 8 (TRPM8), a Ca2+-permeable nonselective cation channel, to increase [Ca2+]i[1]. Antitumor activity[1]. (-)-Menthol is a key component of peppermint oil that binds and activates transient receptor potential melastatin 8 (TRPM8), a Ca2+-permeable nonselective cation channel, to increase [Ca2+]i[1]. Antitumor activity[1]. (-)-Menthol is a key component of peppermint oil that binds and activates transient receptor potential melastatin 8 (TRPM8), a Ca2+-permeable nonselective cation channel, to increase [Ca2+]i[1]. Antitumor activity[1]. (+)-Neomenthol is a potent miticide. (+)-Neomenthol shows acaricidal activitie with LD50 values of 0.32, 0.256 μg/mL for Dermatophagoides farinae and Dermatophagoides pteronyssinus, respectively[1]. (+)-Neomenthol is a potent miticide. (+)-Neomenthol shows acaricidal activitie with LD50 values of 0.32, 0.256 μg/mL for Dermatophagoides farinae and Dermatophagoides pteronyssinus, respectively[1]. DL-Menthol is a relative configuration of (-)-Menthol. DL-Menthol relates to the activation of GABAA receptor[1]. DL-Menthol is a relative configuration of (-)-Menthol. DL-Menthol relates to the activation of GABAA receptor[1]. DL-Menthol is a relative configuration of (-)-Menthol. DL-Menthol relates to the activation of GABAA receptor[1]. Menthol is a natural analgesic compound. Menthol could cause a feeling of coolness due to stimulation of ‘cold’ receptors by inhibiting Ca++ currents of neuronal membranes[1]. Menthol is a natural analgesic compound. Menthol could cause a feeling of coolness due to stimulation of ‘cold’ receptors by inhibiting Ca++ currents of neuronal membranes[1].

   

Nicotinamide adenine dinucleotide

Nicotinamide adenine dinucleotide

C21H26N7O14P2- (662.1012936000001)


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Coenzyme II

Coenzyme II

C21H25N7O17P3-3 (740.051977)


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Geranyl diphosphate(3-)

Geranyl diphosphate(3-)

C10H17O7P2-3 (311.0449492)


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beta-NADH

beta-NADH

C21H27N7O14P2-2 (663.1091182000001)


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