Exact Mass: 162.0528
Exact Mass Matches: 162.0528
Found 157 metabolites which its exact mass value is equals to given mass value 162.0528,
within given mass tolerance error 0.001 dalton. Try search metabolite list with more accurate mass tolerance error
0.0002 dalton.
3-hydroxy-3-methylglutarate
3-Hydroxymethylglutaric acid is an "off-product" intermediate in the leucine degradation process. It is produced by defective or inefficient versions of 3-hydroxy-3-methylglutaryl-CoA lyase, an enzyme that normally catalyzes the conversion of 3-hydroxy-3-methylglutaryl-CoA to acetyl-CoA and acetoacetate. If this enzyme is defective, 3-hydroxy-3-methylglutaryl-CoA will accumulate in the mitochondria. Increased concentrations of 3-hydroxy-3-methylglutaryl-CoA can lead to a disruption of the esterified CoA:free CoA ratio and ultimately to mitochondrial toxicity. Detoxification of these CoA end products occurs via the transfer of the 3-hydroxymethylglutaryl moiety to carnitine, forming 3-hydroxymethylglutaric-carnitine, which is then transferred across the inner mitochondrial membrane where 3-hydroxymethylglutaric acid is released as the free acid. 3-Hydroxymethylglutaric acid has been found to accumulate in the urine of patients affected by 3-Hydroxy-3-methylglutaric aciduria, a rare inborn error of metabolism (OMIM: 246450). 3-Hydroxy-3-methylglutaric aciduria is caused by significantly reduced enzyme activity of the intramitochondrial 3-hydroxy-3-methylglutaryl-CoA lyase (EC 4.1.3.4), the enzyme that catalyzes the final step of leucine degradation. This enzyme also plays a key role in ketone body formation. The profile of urinary organic acids for individuals with 3-hydroxy-3-methylglutaric aciduria is different from that of the other identified defects of leucine degradation, such as maple syrup urine disease (OMIM: 248600), isovaleric acidemia (OMIM: 243500), and methylcrotonylglycinemia (OMIM: 210200). The urinary organic acid profile of 3-hydroxy-3-methylglutaric aciduria includes elevated concentrations of 3-hydroxy-3-isovaleric, 3-hydroxy-3-methylglutaric, 3-methylglutaconic, and 3-methylglutaric acids (PMID: 10916782, 9658458, 3063529). Clinical manifestations of 3-hydroxy-3-methylglutaric aciduria include hepatomegaly, lethargy, coma, and apnea. Biochemically, there is a characteristic absence of ketosis with hypoglycemia, acidosis, hypertransaminasemia, and variable hyperammonemia. Therefore, when present in sufficiently high concentrations, 3-hydroxymethylglutaric acid can act as an acidogen and a metabotoxin. An acidogen is an acidic compound that induces acidosis, which has multiple adverse effects on many organ systems. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. As noted above, chronically high levels of 3-hydroxymethylglutaric acid are associated with the inborn error of metabolism 3-hydroxy-3-methylglutaryl-CoA lyase deficiency. 3-Hydroxymethylglutaric acid is an organic acid. Abnormally high levels of organic acids in the blood (organic acidemia), urine (organic aciduria), the brain, and other tissues lead to general metabolic acidosis. Acidosis typically occurs when arterial pH falls below 7.35. In infants with acidosis, the initial symptoms include poor feeding, vomiting, loss of appetite, weak muscle tone (hypotonia), and lack of energy (lethargy). These can progress to heart, liver, and kidney abnormalities, seizures, coma, and possibly death. These are also the characteristic symptoms of the untreated IEMs mentioned above. Many affected children with organic acidemias experience intellectual disability or delayed development. In adults, acidosis or acidemia is characterized by headaches, confusion, feeling tired, tremors, sleepiness, and seizures. 3-hydroxymethylglutaric acid, also known as meglutol or dicrotalic acid, is a member of the class of compounds known as hydroxy fatty acids. Hydroxy fatty acids are fatty acids in which the chain bears a hydroxyl group. 3-hydroxymethylglutaric acid is soluble (in water) and a weakly acidic compound (based on its pKa). 3-hydroxymethylglutaric acid can be synthesized from glutaric acid. 3-hydroxymethylglutaric acid is also a parent compound for other transformation products, including but not limited to, viscumneoside VII, viscumneoside IV, and yanuthone D. 3-hydroxymethylglutaric acid can be found in flaxseed, which makes 3-hydroxymethylglutaric acid a potential biomarker for the consumption of this food product. 3-hydroxymethylglutaric acid can be found primarily in saliva and urine. 3-hydroxymethylglutaric acid is a non-carcinogenic (not listed by IARC) potentially toxic compound. Chronically high levels of 3-hydroxymethylglutaric acid are associated with the inborn error of metabolism: 3-Hydroxy-3-Methylglutaryl-CoA Lyase Deficiency (T3DB). Meglutol is an antilipidemic agent that lowers cholesterol, triglycerides, and serum beta-lipoproteins and phospholipids, and inhibits hydroxymethylglutaryl-CoA reductase activity, which is the rate-limiting enzyme in cholesterol biosynthesis. Meglutol is an antilipidemic agent that lowers cholesterol, triglycerides, and serum beta-lipoproteins and phospholipids, and inhibits hydroxymethylglutaryl-CoA reductase activity, which is the rate-limiting enzyme in cholesterol biosynthesis.
Diethyl dicarbonate
Diethyl dicarbonate is formerly used as a fermentation inhibitor and preservative for wines, soft drinks and fruit juices. No longer permitted as a food additive. Formerly used as a fermentation inhibitor and preservative for wines, soft drinks and fruit juices. No longer permitted as a food additive.
2-Hydroxyadipic acid
2-Hydroxyadipic acid is a hydroxy-dicarboxylic acid formed by the reduction of 2-ketoadipic acid. A deficiency of 2-ketoadipic dehydrogenase causes 2-ketoadipic acidemia or 2-oxoadipic acidemia (OMIM: 245130), a genetic disorder characterized by accumulation and excretion of 2-hydroxyadipic acid (with 2-ketoadipic and 2-aminoadipic) (OMMBID - The Online Metabolic and Molecular Bases of Inherited Disease, CH.95). When present in sufficiently high levels, 2-hydroxyadipic acid can act as an acidogen and a metabotoxin. An acidogen is an acidic compound that induces acidosis, which has multiple adverse effects on many organ systems. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. Chronically high levels of 2-hydroxyadipic acid are associated with at least three inborn errors of metabolism including 2-oxoadipic acidemia, 2-aminoadipic aciduria, and 2-oxoadipic aciduria. 2-Hydroxyadipic acid is an organic acid. Abnormally high levels of organic acids in the blood (organic acidemia), urine (organic aciduria), the brain, and other tissues lead to general metabolic acidosis. Acidosis typically occurs when arterial pH falls below 7.35. In infants with acidosis, the initial symptoms include poor feeding, vomiting, loss of appetite, weak muscle tone (hypotonia), and lack of energy (lethargy). These can progress to heart abnormalities, kidney abnormalities, liver damage, seizures, coma, and possibly death. These are also the characteristic symptoms of the untreated IEMs mentioned above. Many affected children with organic acidemias experience intellectual disability or delayed development. In adults, acidosis or acidemia is characterized by headaches, confusion, feeling tired, tremors, sleepiness, and seizures. 2-Hydroxyadipic acid is a hydroxy-dicarboxylic acid formed by the reduction of 2-ketoadipic acid. Deficiency of 2-ketoadipic dehydrogenase causes 2-ketoadipic acidemia (OMIM 245130), a condition characterized by accumulation and excretion of 2-hydroxyadipic acid (with 2-ketoadipic and 2-aminoadipic) probably without adverse phenotypic effects.(OMMBID - The Metabolic and Molecular Bases of Inherited Disease, CH.95). A method involving derivatization and combined gas chromatography--mass spectrometry has been recently developed to separate the enantiomers of 3-hydroxyadipic acid (PMID: 3980660). It has been shown that 3-hydroxyadipic acid excreted in urine consists of at least 95\\\% of the L-enantiomer. This finding supports the hypothesis that dicarboxylic acids are degraded by ordinary beta-oxidation, and indicates that adipic acid may be converted into succinic acid. (PMID: 3980660) [HMDB] 2-Hydroxyadipic acid is an organic acid, formed by the reduction of 2-ketoadipic acid.
2-Hydroxy-2-ethylsuccinic acid
2-Hydroxy-2-ethylsuccinic acid belongs to the family of Hydroxy Fatty Acids. These are fatty acids in which the chain bears an hydroxyl group.
D-1,5-Anhydrofructose
D-1,5-Anhydrofructose is found in fruits. D-1,5-Anhydrofructose is isolated from Morchella vulgaris (morel). Isolated from Morchella vulgaris (morel). D-1,5-Anhydrofructose is found in fruits.
Levoglucosan
Levoglucosan is an anhydrohexose that is the 1,6-anhydro-derivative of beta-D-glucopyranose. It is formed from the pyrolysis of carbohydrates, such as starch and cellulose. As a result, levoglucosan is often used as a chemical tracer for biomass burning in atmospheric chemistry studies, particularly with respect to airborne particulate matter. Levoglucosan in urine has been shown to be highly correlated with regional fires and as a biomarker for wood smoke exposure (PMID: 19165390). This is because the gas emitted by the pyrolysis of wood (biomass) contains significant amounts of levoglucosan. The hydrolysis of levoglucosan generates the fermentable sugar glucose, and therefore lignocellulosic material exhibits great potential as a renewable feedstock for the production of bioethanol. Levoglucosan can also be utilized in the synthesis of chiral polymers such as unhydrolysable glucose polymers. Levoglucosan is also produced via caramelization of sugar. Consumption of caramel or caramel-containing sweets can lead to a short-term 5X increase in urinary levels of levoglucosan (from 20 uM/mM creatinine to 100 uM/mM creatinine) (PMID: 19707249). Urinary levoglucosan levels increase within 2 h of caramel consumption and return to pre-exposure levels within 24 h. These data suggest that diet is a major factor in determining urinary levoglucosan levels and that recent dietary history needs to be taken into account to use levoglucosan as a marker for wood smoke exposure. Excretory levels of levoglucosan vary widely from zero up to 5.3 mmol/L (PMID: 3757263, 16448658, 16317539). Levoglucosan (1,6-Anhydro-β-D-glucopyranose) is an anhydrosugar produced through glucan pyrolysis and is widely found in nature[1].
(-)-1-Methylpropyl 1-propenyl disulfide
(-)-1-Methylpropyl 1-propenyl disulfide is found in green vegetables. (-)-1-Methylpropyl 1-propenyl disulfide is a constituent of Ferula assa-foetida (asafoetida) Constituent of Ferula assa-foetida (asafoetida). (-)-1-Methylpropyl 1-propenyl disulfide is found in herbs and spices and green vegetables.
3-Hydroxyadipic acid
3-Hydroxyadipic acid is a normal urinary dicarboxylic acid derived from the omega-oxidation of 3-hydroxy fatty acids and the subsequent beta-oxidation of longer chain 3-hydroxy dicarboxylic acids (PMID 2001377). It is found to be elevated in patients with 3-hydroxydicarboxylic aciduria (PMID 1444166) and non-ketotic hypoglycemia (PMID 3168281). [HMDB] 3-Hydroxyadipic acid is a normal urinary dicarboxylic acid derived from the omega-oxidation of 3-hydroxy fatty acids and the subsequent beta-oxidation of longer chain 3-hydroxy dicarboxylic acids (PMID 2001377). It is found to be elevated in patients with 3-hydroxydicarboxylic aciduria (PMID 1444166) and non-ketotic hypoglycemia (PMID 3168281).
2(R)-Hydroxyadipic acid
2(R)-Hydroxyadipic acid is an unusual metabolic isomer of 2-Hydroxyadipic acid (a metabolite that accumulates in 2-ketoadipic acidemia) normally present in bacteria, described in normal human biofluids (PMID 6788787) [HMDB] 2(R)-Hydroxyadipic acid is an unusual metabolic isomer of 2-hydroxyadipic acid (a metabolite that accumulates in 2-ketoadipic acidemia) normally present in bacteria and described in normal human biofluids (PMID: 6788787).
3-Hydroxy-2-methylglutaric acid
3-Hydroxy-2-methylglutaric acid (CAS: 54665-33-7), also known as 2,4-dideoxy-2-methylpentaric acid, belongs to the class of organic compounds known as hydroxy fatty acids. These are fatty acids in which the chain bears a hydroxyl group. 3-Hydroxy-2-methylglutaric acid is an extremely weak basic (essentially neutral) compound (based on its pKa).
D-1-Deoxy-erythro-hexo-2,3-diulose
Postulated common intermediate in the formation of sugar-amine products in food browning and related reactions
(2S)-2-[(2S,3S,4R)-3,4-Dihydroxyoxolan-2-yl]-2-hydroxyacetaldehyde
Lichenin
Lichenin, also known as lichenan or moss starch, is a complex glucan occurring in certain species of lichens. It can be extracted from Cetraria islandica (Iceland moss). It has been studied since about 1957. Chemically, lichenin consists of repeating glucose units linked by beta-1,3 and beta-1,4 glycosidic bonds . Lichenin is soluble (in water) and a very weakly acidic compound (based on its pKa). Lichenin can be found in oat, which makes lichenin a potential biomarker for the consumption of this food product. Lichenin, also known as lichenan or moss starch, is a complex glucan occurring in certain species of lichens. It can be extracted from Cetraria islandica (Iceland moss). It has been studied since about 1957. Chemically, lichenin consists of repeating glucose units linked by β-1,3 and β-1,4 glycosidic bonds . Lichenin is soluble (in water) and a very weakly acidic compound (based on its pKa). Lichenin can be found in oat, which makes lichenin a potential biomarker for the consumption of this food product.
1-Rhamnono-1,4-lactone
1-rhamnono-1,4-lactone is a member of the class of compounds known as gamma butyrolactones. Gamma butyrolactones are compounds containing a gamma butyrolactone moiety, which consists of an aliphatic five-member ring with four carbon atoms, one oxygen atom, and bears a ketone group on the carbon adjacent to the oxygen atom. 1-rhamnono-1,4-lactone is soluble (in water) and a very weakly acidic compound (based on its pKa). 1-rhamnono-1,4-lactone can be found in rice, which makes 1-rhamnono-1,4-lactone a potential biomarker for the consumption of this food product.
3,4-dihydroxy-5-(hydroxymethyl)oxolane-2-carbaldehyde
3,4,5-trihydroxy-2-methyl-tetrahydrofuran-3-carboxaldehyde
Levoglucosan
A anhydrohexose that is the 1,6-anhydro-derivative of beta-D-glucopyranose. Acquisition and generation of the data is financially supported in part by CREST/JST. Levoglucosan (1,6-Anhydro-β-D-glucopyranose) is an anhydrosugar produced through glucan pyrolysis and is widely found in nature[1].
3-Hydroxy-3-methylglutarate
Meglutol is an antilipidemic agent that lowers cholesterol, triglycerides, and serum beta-lipoproteins and phospholipids, and inhibits hydroxymethylglutaryl-CoA reductase activity, which is the rate-limiting enzyme in cholesterol biosynthesis. Meglutol is an antilipidemic agent that lowers cholesterol, triglycerides, and serum beta-lipoproteins and phospholipids, and inhibits hydroxymethylglutaryl-CoA reductase activity, which is the rate-limiting enzyme in cholesterol biosynthesis.
2-hydroxyadipic acid
2-Hydroxyadipic acid is an organic acid, formed by the reduction of 2-ketoadipic acid.
3-Hydroxymethylglutaric acid
Meglutol is an antilipidemic agent that lowers cholesterol, triglycerides, and serum beta-lipoproteins and phospholipids, and inhibits hydroxymethylglutaryl-CoA reductase activity, which is the rate-limiting enzyme in cholesterol biosynthesis. Meglutol is an antilipidemic agent that lowers cholesterol, triglycerides, and serum beta-lipoproteins and phospholipids, and inhibits hydroxymethylglutaryl-CoA reductase activity, which is the rate-limiting enzyme in cholesterol biosynthesis.
3-Hydroxy-3-methylglutaric acid
A dicarboxylic acid that is glutaric acid in which one of the two hydrogens at position 3 is substituted by a hydroxy group, while the other is substituted by a methyl group. It has been found to accumulate in urine of patients suffering from HMG-CoA lyase (3-hydroxy-3-methylglutaryl-CoA lyase, EC 4.1.3.4) deficiency. It occurs as a plant metabolite in Crotalaria dura.
3-Hydroxy-3-methylglutaric acid
D057847 - Lipid Regulating Agents > D000960 - Hypolipidemic Agents > D000924 - Anticholesteremic Agents C - Cardiovascular system > C10 - Lipid modifying agents > C10A - Lipid modifying agents, plain D004791 - Enzyme Inhibitors > D019161 - Hydroxymethylglutaryl-CoA Reductase Inhibitors C78276 - Agent Affecting Digestive System or Metabolism > C29703 - Antilipidemic Agent D009676 - Noxae > D000963 - Antimetabolites Meglutol is an antilipidemic agent that lowers cholesterol, triglycerides, and serum beta-lipoproteins and phospholipids, and inhibits hydroxymethylglutaryl-CoA reductase activity, which is the rate-limiting enzyme in cholesterol biosynthesis. Meglutol is an antilipidemic agent that lowers cholesterol, triglycerides, and serum beta-lipoproteins and phospholipids, and inhibits hydroxymethylglutaryl-CoA reductase activity, which is the rate-limiting enzyme in cholesterol biosynthesis.
3-Hydroxymethylglutarate
Meglutol is an antilipidemic agent that lowers cholesterol, triglycerides, and serum beta-lipoproteins and phospholipids, and inhibits hydroxymethylglutaryl-CoA reductase activity, which is the rate-limiting enzyme in cholesterol biosynthesis. Meglutol is an antilipidemic agent that lowers cholesterol, triglycerides, and serum beta-lipoproteins and phospholipids, and inhibits hydroxymethylglutaryl-CoA reductase activity, which is the rate-limiting enzyme in cholesterol biosynthesis.
2,3-O-Isopropylidene-2-C-methyl-D-ribonic-gamma-lactone
Glucosan
Glucosan is a monosaccharide anhydride compound present in biomass combustion smoke, and is a tracer for biomass burning sources in atmospheric aerosol particles. A product of cellulose combustion; when cellulose is heated to over 300 degree centigrade, it undergoes various pyrolytic processes, yielding a highly combustible tar, a major constituent of which is glucosan, a dehydrated glucose containing a ketal functional group.; Glucosan is a saccharide constituent of human urine, detected with one-dimensional thin-layer chromatography, and further studied by gas chromatography-mass spectrometry. It was identified in approximately 20\\\% of all urine samples investigated. Excretory levels varied widely from zero up to 5.3 mmol/l. (PMID: 3757263, 16448658, 16317539). Glucosan is found in sweet orange. Levoglucosan (1,6-Anhydro-β-D-glucopyranose) is an anhydrosugar produced through glucan pyrolysis and is widely found in nature[1].
(-)-1-Methylpropyl 1-propenyl disulfide
(-)-1-Methylpropyl 1-propenyl disulfide is found in green vegetables. (-)-1-Methylpropyl 1-propenyl disulfide is a constituent of Ferula assa-foetida (asafoetida) Constituent of Ferula assa-foetida (asafoetida). (-)-1-Methylpropyl 1-propenyl disulfide is found in herbs and spices and green vegetables.
(2S,3S,4R,5S)-3,4,5-trihydroxy-2-methyloxolane-3-carbaldehyde
(3S,4S,5R)-3,4-dihydroxy-5-[(1R)-1-hydroxyethyl]oxolan-2-one
(2S,3S,4R,5R)-6,8-dioxabicyclo[3.2.1]octane-2,3,4-triol
3,6-anhydro-alpha-L-galactopyranose
An anhydrohexose obtained by formation of a ring across the 3 and 6 positions of alpha-L-galactopyranose.
