Exact Mass: 76.0442
Exact Mass Matches: 76.0442
Found 96 metabolites which its exact mass value is equals to given mass value 76.0442,
within given mass tolerance error 0.05 dalton. Try search metabolite list with more accurate mass tolerance error
0.01 dalton.
Glycolic acid
Glycolic acid (or hydroxyacetic acid) is the smallest alpha-hydroxy acid (AHA). This colourless, odourless, and hygroscopic crystalline solid is highly soluble in water. Due to its excellent capability to penetrate skin, glycolic acid is often used in skin care products, most often as a chemical peel. It may reduce wrinkles, acne scarring, and hyperpigmentation and improve many other skin conditions, including actinic keratosis, hyperkeratosis, and seborrheic keratosis. Once applied, glycolic acid reacts with the upper layer of the epidermis, weakening the binding properties of the lipids that hold the dead skin cells together. This allows the outer skin to dissolve, revealing the underlying skin. It is thought that this is due to the reduction of calcium ion concentrations in the epidermis and the removal of calcium ions from cell adhesions, leading to desquamation. Glycolic acid is a known inhibitor of tyrosinase. This can suppress melanin formation and lead to a lightening of skin colour. Acute doses of glycolic acid on skin or eyes leads to local effects that are typical of a strong acid (e.g. dermal and eye irritation). Glycolate is a nephrotoxin if consumed orally. A nephrotoxin is a compound that causes damage to the kidney and kidney tissues. Glycolic acids renal toxicity is due to its metabolism to oxalic acid. Glycolic and oxalic acid, along with excess lactic acid, are responsible for the anion gap metabolic acidosis. Oxalic acid readily precipitates with calcium to form insoluble calcium oxalate crystals. Renal tissue injury is caused by widespread deposition of oxalate crystals and the toxic effects of glycolic acid. Glycolic acid does exhibit some inhalation toxicity and can cause respiratory, thymus, and liver damage if present in very high levels over long periods of time. Elevated glycolic acid without elevated oxalic acid is most likely a result of GI yeast overgrowth (Aspergillus, Penicillium, probably Candida) or due to dietary sources containing glycerol (glycerine). (http://drweyrich.weyrich.com/labs/oat.html). Glycolic acid has also been found to be a metabolite in Acetobacter, Acidithiobacillus, Alcaligenes, Corynebacterium, Cryptococcus, Escherichia, Gluconobacter, Kluyveromyces, Leptospirillum, Pichia, Rhodococcus, Rhodotorula and Saccharomyces (PMID: 11758919; PMID: 26360870; PMID: 14390024). D003879 - Dermatologic Agents > D007641 - Keratolytic Agents Found in sugar cane (Saccharum officinarum) KEIO_ID G012 Glycolic acid is an inhibitor of tyrosinase, suppressing melanin formation and lead to a lightening of skin colour. Glycolic acid is an inhibitor of tyrosinase, suppressing melanin formation and lead to a lightening of skin colour.
Hydroxyurea
Hydroxyurea is only found in individuals that have used or taken this drug. It is an antineoplastic agent that inhibits DNA synthesis through the inhibition of ribonucleoside diphosphate reductase. [PubChem]Hydroxyurea is converted to a free radical nitroxide (NO) in vivo, and transported by diffusion into cells where it quenches the tyrosyl free radical at the active site of the M2 protein subunit of ribonucleotide reductase, inactivating the enzyme. The entire replicase complex, including ribonucleotide reductase, is inactivated and DNA synthesis is selectively inhibited, producing cell death in S phase and synchronization of the fraction of cells that survive. Repair of DNA damaged by chemicals or irradiation is also inhibited by hydroxyurea, offering potential synergy between hydroxyurea and radiation or alkylating agents. Hydroxyurea also increases the level of fetal hemoglobin, leading to a reduction in the incidence of vasoocclusive crises in sickle cell anemia. Levels of fetal hemoglobin increase in response to activation of soluble guanylyl cyclase (sGC) by hydroxyurea-derived NO. C274 - Antineoplastic Agent > C186664 - Cytotoxic Chemotherapeutic Agent > C272 - Antimetabolite L - Antineoplastic and immunomodulating agents > L01 - Antineoplastic agents D004791 - Enzyme Inhibitors > D019384 - Nucleic Acid Synthesis Inhibitors C471 - Enzyme Inhibitor > C2150 - Ribonucleotide Reductase Inhibitor D006401 - Hematologic Agents > D000986 - Antisickling Agents D000970 - Antineoplastic Agents KEIO_ID H104
Ethanethioic acid
Ethanethioic acid is used as a food additive [EAFUS] ("EAFUS: Everything Added to Food in the United States. [http://www.eafus.com/]")
1,3-PROPANEDIOL
1,3-Propanediol is produced in nature by the fermentation of glycerol in microorganism[1]. 1,3-Propanediol is produced in nature by the fermentation of glycerol in microorganism[1].
Propylene glycol
Propylene glycol (CAS: 57-55-6), also known as 1,2-propanediol, is an organic compound (a diol alcohol), usually a tasteless, odourless, and colourless clear oily liquid that is hygroscopic and miscible with water, acetone, and chloroform. It is manufactured by the hydration of propylene oxide. Propylene glycol is used as a solvent for intravenous, oral, and topical pharmaceutical preparations It is generally considered safe. However, in large doses, it can be toxic, especially if given over a short period of time. Intravenous lorazepam contains the largest amount of propylene glycol of commonly used drugs. In adults with normal liver and kidney function, the terminal half-life of propylene glycol ranges from 1.4 to 3.3 hours. Propylene glycol is metabolized by the liver to form lactate, acetate, and pyruvate. The nonmetabolized drug is excreted in the urine mainly as the glucuronide conjugate, approximately 12 to 45 percent is excreted unchanged in urine. Renal clearance decreases as the dose administered increases (390 ml/minute/173 m2 at a dose of 5 g/day but only 144 ml/minute/173 m2 at a dose of 21 g/day). These data suggest that renal clearance declines at higher propylene glycol doses because of the saturation of proximal tubular secretion of the drug. As an acceptable level of propylene glycol has not been defined, the clinical implication of a propylene glycol level is unclear. The World Health Organization (WHO) recommends a maximum consumption of 25 mg/kg/day (1.8 g/day for a 75 kg male) of propylene glycol when used as a food additive, but this limit does not address its use as a drug solvent. No maximum dose is recommended in the literature for intravenous therapy with propylene glycol. Intoxication occurs at much higher doses than the WHO dose limit and is exclusive to pharmacologic exposure. Propylene glycol toxicity includes the development of serum hyperosmolality, lactic acidosis, and kidney failure. It has been suggested that proximal tubular necrosis is the cause of acute kidney injury from propylene glycol. Along these lines, proximal tubular cell injury occurs in cultured human cells exposed to propylene glycol. Acute tubular necrosis was described with propylene glycol toxicity in a case of concomitant administration of intravenous lorazepam and trimethoprim sulfamethoxazole. Propylene glycol induced intoxication can also mimic sepsis or systemic inflammatory response syndrome (SIRS). Patients suspected of having sepsis with negative cultures should be evaluated for propylene glycol toxicity if they have been exposed to high dose lorazepam or other medications containing this solvent (PMID:17555487). Propylene glycol is an anticaking agent, antioxidant, dough strengthener, emulsifier, flavouring agent, formulation aid, humectant, solvent, preservative, stabiliser, hog/poultry scald agent, and surface active agent. It is found in foods such as roasted sesame seeds, oats, truffle and other mushrooms. (R)-(-)-1,2-Propanediol is a (R)-enantiomer of 1,2-Propanediol that produced from glucose in Escherichia coli expressing NADH-linked glycerol dehydrogenase genes[1]. (R)-(-)-1,2-Propanediol is a (R)-enantiomer of 1,2-Propanediol that produced from glucose in Escherichia coli expressing NADH-linked glycerol dehydrogenase genes[1].
1-Propanethiol
1-Propanethiol, also known as N-propylthiol or propyl mercaptan, belongs to the class of organic compounds known as alkylthiols. These are organic compounds containing the thiol functional group linked to an alkyl chain. 1-Propanethiol is a sweet, cabbage, and gassy tasting compound. 1-Propanethiol has been detected, but not quantified, in several different foods, such as garden onions, fruits, cabbages, wild leeks, and onion-family vegetables. Isolated from onion (Allium cepa) and other Allium sspecies Also present in cooked chicken, beef, beer, American potato chips and durian (Durio zibethinus). 1-Propanethiol is found in many foods, some of which are fruits, wild leek, yellow wax bean, and animal foods.
2-Propanethiol
2-Propanethiol, also known as 2-mercaptopropane or 2-propylmercaptan, belongs to the class of organic compounds known as alkylthiols. These are organic compounds containing the thiol functional group linked to an alkyl chain. It can also be prepared by the reaction of sodium hydrosulfide with 1-chloropropane. 2-Propanethiol is a strong, gassy, and meaty tasting compound. 2-propanethiol has been detected, but not quantified, in potato. This could make 2-propanethiol a potential biomarker for the consumption of these foods. Propanethiol is an organic compound with the molecular formula C3H8S. Propanethiol is chemically classified among the thiols, which are organic compounds with molecular formulas and structural formulas similar to alcohols, except that sulfur-containing sulfhydryl group (-SH) replaces the oxygen-containing hydroxyl group in the molecule. It is highly flammable and it gives off irritating or toxic fumes (or gases) in a fire. It is a colorless liquid with a strong, offensive odor. Propanethiols basic molecular formula is C3H7SH, and its structural formula is similar to that of the alcohol n-propanol. Propanethiol is manufactured commercially by the reaction of propene with hydrogen sulfide with ultraviolet light initiation in an anti-Markovnikov addition. It is moderately toxic and is less dense than water and slightly soluble in water. It is used as a feedstock for insecticides. Food additive listed on the EAFUS Food Additive Database (Jan. 2001). 2-Propanethiol is found in potato.
Thiourea
Thiourea is an organic compound of carbon, nitrogen, sulfur and hydrogen, with the formula CSN2H4 or (NH2)2CS. It is similar to urea, except that the oxygen atom is replaced by a sulfur atom. The properties of urea and thiourea differ significantly because of the relative electronegativities of sulfur and oxygen. Thiourea is a versatile reagent in organic synthesis. "Thioureas" refers to a broad class of compounds with the general structure (R1R2N)(R3R4N)C=S. Thioureas are related to thioamides, e.g. RC(S)NR2, where R is methyl, ethyl, etc. Thiourea is prohibited from use in food. Industrial uses of thiourea include production of flame retardant resins, and vulcanization accelerators. Thiourea is used as an auxiliary agent in diazo paper (light-sensitive photocopy paper) and almost all other types of copy paper. It is also used to tone silver-gelatin photographic prints. The liquid silver cleaning product TarnX is essentially a solution of thiourea. A leaching agent for gold leaching and silver leaching can be created by selectively oxidizing thiourea, bypassing the steps of cyanide use and smelting. Another common application for use of thiourea is a common sulfur source for making semiconductor cadmium sulfide nanoparticle. Thiourea is a planar molecule. The C=S bond distance is 1.60±0.1 for a wide range of derivatives. This narrow range indicates that the C=S bond is insensitive to the nature of the substitutent. Thus, the thioamide, which is similar to an amide group, is difficult to perturb. Thiourea reduces peroxides to the corresponding diols. The intermediate of the reaction is an unstable epidioxide which can only be identified at -100 °C. Epidioxide is similar to epoxide except with two oxygen atoms. This intermediate reduces to diol by thiourea D019995 - Laboratory Chemicals > D007202 - Indicators and Reagents Prohibited from use in food
(S)-Propane-1,2-diol
(S)-Propane-1,2-diol, also known as (S)-1,2-propanediol or (S)-propylene glycol, belongs to the class of organic compounds known as 1,2-diols. These are polyols containing an alcohol group at two adjacent positions. (S)-Propane-1,2-diol is an extremely weak basic (essentially neutral) compound (based on its pKa). (S)-Propane-1,2-diol has been detected, but not quantified in, several different foods, such as common buckwheats, mustard spinach, sugar apples, black crowberries, and bayberries. This could make (S)-propane-1,2-diol a potential biomarker for the consumption of these foods. (S)-Propane-1,2-diol is a clear, colourless, viscous organic solvent and diluent used in pharmaceutical preparations. (S)-(+)-1,2-Propanediol is an endogenous metabolite.
propylene glycol
D010592 - Pharmaceutic Aids > D014677 - Pharmaceutical Vehicles D012997 - Solvents (R)-(-)-1,2-Propanediol is a (R)-enantiomer of 1,2-Propanediol that produced from glucose in Escherichia coli expressing NADH-linked glycerol dehydrogenase genes[1]. (R)-(-)-1,2-Propanediol is a (R)-enantiomer of 1,2-Propanediol that produced from glucose in Escherichia coli expressing NADH-linked glycerol dehydrogenase genes[1].
Ethyl methyl sulfide
Flavouring ingredient. Aroma constituent of cooked meats, canned salmon, tomato, coffee and leek oil. Food additive listed in the EAFUS Food Additive Database (Jan 2001). Ethyl methyl sulfide is found in many foods, some of which are animal foods, fishes, onion-family vegetables, and coffee and coffee products. Ethyl methyl sulfide is found in animal foods. Ethyl methyl sulfide is a flavouring ingredient. Aroma constituent of cooked meats, canned salmon, tomato, coffee and leek oil. Ethyl methyl sulfide is a food additive listed in the EAFUS food Additive Database (Jan 2001
Peracetic acid
Bleaching agent for food starch. Peracetic acid is a component of antimicrobial washes for poultry carcasses and fruit.Peracetic acid (also known as peroxyacetic acid, or PAA), is a organic compound with the formula CH3CO3H. This organic peroxide is a colorless liquid with a characteristic acrid odor reminiscent of acetic acid. It can be highly corrosive. Peracetic acid can be used as a bleaching agent especially for Kraft pulp. It is used at weakly acidic pH and relatively low temperature. It is a relative efficient and selective bleaching agent, and it is often used as an alternative to chlorine dioxide and elemental chlorine in totally chlorine free bleaching sequences (TCF). It is however relatively expensive, and is difficult to store due to its high reactivity. This has limited its use. Peracetic acid is a much weaker acid than the parent acetic acid, with a pKa of 8.2. Peracetic acid is an ideal antimicrobial agent due to its high oxidizing potential. It is broadly effective against microorganisms and is not deactivated by catalase and peroxidase, the enzymes that break down hydrogen peroxide. It also breaks down in food to safe and environmentally friendly residues (acetic acid and hydrogen peroxide), and therefore can be used in non-rinse applications. It can be used over a wide temperature range (0-40 °C), wide pH range (3.0-7.5), in clean-in-place (CIP) processes, in hard water conditions, and is not affected by protein residues D009676 - Noxae > D016877 - Oxidants D000890 - Anti-Infective Agents D004202 - Disinfectants
2-Methoxyethanol
D007155 - Immunologic Factors > D007166 - Immunosuppressive Agents D009676 - Noxae > D013723 - Teratogens
hydroxyurea
C274 - Antineoplastic Agent > C186664 - Cytotoxic Chemotherapeutic Agent > C272 - Antimetabolite L - Antineoplastic and immunomodulating agents > L01 - Antineoplastic agents D004791 - Enzyme Inhibitors > D019384 - Nucleic Acid Synthesis Inhibitors C471 - Enzyme Inhibitor > C2150 - Ribonucleotide Reductase Inhibitor D006401 - Hematologic Agents > D000986 - Antisickling Agents D000970 - Antineoplastic Agents
glycolic acid
A 2-hydroxy monocarboxylic acid that is acetic acid where the methyl group has been hydroxylated. D003879 - Dermatologic Agents > D007641 - Keratolytic Agents Glycolic acid is an inhibitor of tyrosinase, suppressing melanin formation and lead to a lightening of skin colour. Glycolic acid is an inhibitor of tyrosinase, suppressing melanin formation and lead to a lightening of skin colour.
2-methoxyethanol
D007155 - Immunologic Factors > D007166 - Immunosuppressive Agents D009676 - Noxae > D013723 - Teratogens
propane-1,3-diol
The simplest member of the class of propane-1,3-diols, consisting of propane in which one hydrogen from each methyl group is substituted by a hydroxy group. A colourless, viscous, water-miscible liquid with a high (210degreeC) boiling point, it is used in the synthesis of certain polymers and as a solvent and antifreeze.
Peracetic acid
D009676 - Noxae > D016877 - Oxidants D000890 - Anti-Infective Agents D004202 - Disinfectants
(R)-(−)-Propylene glycerol
(R)-(-)-1,2-Propanediol is a (R)-enantiomer of 1,2-Propanediol that produced from glucose in Escherichia coli expressing NADH-linked glycerol dehydrogenase genes[1]. (R)-(-)-1,2-Propanediol is a (R)-enantiomer of 1,2-Propanediol that produced from glucose in Escherichia coli expressing NADH-linked glycerol dehydrogenase genes[1].
(S)-Propane-1,2-diol
(s)-propane-1,2-diol, also known as (S)-propylene glycol or (S)-1,2-dihydroxypropane, is a member of the class of compounds known as 1,2-diols. 1,2-diols are polyols containing an alcohol group at two adjacent positions (s)-propane-1,2-diol is soluble (in water) and a very weakly acidic compound (based on its pKa). (s)-propane-1,2-diol can be found in a number of food items such as giant butterbur, pasta, celery leaves, and pecan nut, which makes (s)-propane-1,2-diol a potential biomarker for the consumption of these food products (s)-propane-1,2-diol can be found primarily in saliva (s)-propane-1,2-diol exists in all living organisms, ranging from bacteria to humans. (S)-(+)-1,2-Propanediol is an endogenous metabolite.
Hydroxytrimethylaminium
A methylated tertiary amine that is trimethylammonium in which the hydrogen attached to the nitrogen is replaced by a hydroxy group.
R-1,2-PROPANEDIOL
(R)-(-)-1,2-Propanediol is a (R)-enantiomer of 1,2-Propanediol that produced from glucose in Escherichia coli expressing NADH-linked glycerol dehydrogenase genes[1]. (R)-(-)-1,2-Propanediol is a (R)-enantiomer of 1,2-Propanediol that produced from glucose in Escherichia coli expressing NADH-linked glycerol dehydrogenase genes[1].
(2R)-2-hydroxypropylammonium
An ammonium ion obtained by protonation of the amino group of (2R)-1-aminopropan-2-ol.
Propane-1,2-diol
The simplest member of the class of propane-1,2-diols, consisting of propane in which a hydrogen at position 1 and a hydrogen at position 2 are substituted by hydroxy groups. A colourless, viscous, hygroscopic, low-melting (-59degreeC) and high-boiling (188degreeC) liquid with low toxicity, it is used as a solvent, emulsifying agent, and antifreeze.
Propane-1-thiol
An alkanethiol that is propane substituted by a thiol group at position 1.
