Exact Mass: 158.0579
Exact Mass Matches: 158.0579
Found 117 metabolites which its exact mass value is equals to given mass value 158.0579,
within given mass tolerance error 4.0E-5 dalton. Try search metabolite list with more accurate mass tolerance error
8.0E-6 dalton.
Isopropylmaleic acid
2-Isopropylmaleic acid belongs to the class of organic compounds known as methyl-branched fatty acids. These are fatty acids with an acyl chain that has a methyl branch. Usually they are saturated and contain one or more methyl groups. However, branches other than methyl groups may be present. 2-Isopropylmaleic acid is a moderately acidic compound (based on its pKa). Isopropylmaleic acid is found in the leucine biosynthesis pathway. It is synthesized from oxoisovalerate by 2-isopropylmalate synthase and converted into isopropyl-3-oxosuccinate by 3-isopropylmalate dehydrogenase. The 2- and 3-isopropyl derivatives of isopropylmaleic acid are interconverted by the enzyme isopropylmalate dehydratase.
CYCLOHEXANECARBOXYLIC ACID, 4-HYDROXY-3-OXO- (9CI)
(5R,6R)-2,6-dihydroxy-5-(hydroxymethyl)cyclohex-2-en-1-one
xi-2,3-Dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4-one
xi-2,3-Dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4-one is found in numerous cooked or stored foods such as cooked vegetables, bread crust, caramelised sugar products and dehydrated orange juice powder. Intermediate produced in Maillard reaction; formed in non-enzymic browning reactions; synthetic from aldohexoses and secondary amines. Found in numerous cooked or stored foods such as cooked vegetables, bread crust, caramelised sugar products and dehydrated orange juice powder. Intermed. production in Maillard reaction; formed in non-enzymic browning reactions; synth. from aldohexoses and secondary amines
Succinylacetone
Succinylacetone, also known as 4,6-dioxoheptanoic acid or SUAC, belongs to the class of compounds known as medium-chain keto acids and derivatives. These are keto acids with 6 to 12 carbon atoms. Succinylacetone is soluble (in water) and a weakly acidic compound (based on its pKa). Succinylacetone has been detected in amniotic fluid, blood, and urine. Within the cell, succinylacetone is primarily located in the cytoplasm (predicted from logP). Succinylacetone can be created by the oxidation of glycine, and is a precursor of methylglyoxal (Wikipedia). Succinylacetone is an abnormal tyrosine metabolite that arises from defects in the enzyme called fumarylacetoacetase (PMID: 16448836). Fumarylacetoacetase normally catalyzes the hydrolysis of 4-fumarylacetoacetate into fumarate and acetoacetate. If present in sufficiently high levels, succinylacetone can act as an acidogen, an oncometabolite, and a metabotoxin. An acidogen is an acidic compound that induces acidosis, which has multiple adverse effects on many organ systems. An oncometabolite is an endogenous metabolite that causes cancer. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. Chronically high levels of succinylacetone are associated with tyrosinemia type I. Type I tyrosinemia is an inherited metabolism disorder due to a shortage of the enzyme fumarylacetoacetate hydrolase that is needed to break down tyrosine. Patients usually develop features such as hepatic necrosis, renal tubular injury, and hypertrophic cardiomyopathy. Neurologic and dermatologic manifestations are also possible. The urine has an odour of cabbage or rancid butter. Succinylacetone is a keto-acid, which is a subclass of organic acids. 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 untreated tyrosinemia. Many affected children with organic acidemias experience intellectual disability or delayed development. Succinylacetone appears to function as an oncometabolite (similar in function to succinate, another oncometabolite) as patients with high levels of this compound often develop hepatocellular carcinoma (PMID: 20003495). Succinylacetone is a tyrosine metabolite (PMID 16448836). It is a specific marker for Tyrosinemia type I. Type I tyrosinemia is an inherited metabolism disorder due to a shortage of the enzyme fumarylacetoacetate hydrolase that is needed to break down tyrosine. [HMDB] D004791 - Enzyme Inhibitors 4,6-Dioxoheptanoic acid is a potent inhibitor of heme biosynthesis.
Ethyl 5-oxotetrahydro-2-furancarboxylate
Ethyl 5-oxotetrahydro-2-furancarboxylate belongs to the family of Dicarboxylic Acids and Derivatives. These are organic compounds containing exactly two carboxylic acid groups Flavouring compound [Flavornet]
3-Acetyl-3-hydroxy-4,5-dihydro-4-methyl-2(3H)-furanone
5-hydroxy-3-[(1S)-1-hydroxyethyl]-4-methylfuran-2(5H)-one|5-hydroxyl-3-[(1S)-1-hydroxyethyl]-4-methylfuran-2(5H)-one
Succinylacetone
D004791 - Enzyme Inhibitors 4,6-Dioxoheptanoic acid is a potent inhibitor of heme biosynthesis.
4,6-Dioxoheptanoic acid
A dioxo monocarboxylic acid that is heptanoic acid in which oxo groups replace the hydrogens at positions 4 and 6. It is an abnormal metabolite of the tyrosine metabolic pathway and a marker for type 1 tyrosinaemia. D004791 - Enzyme Inhibitors 4,6-Dioxoheptanoic acid is a potent inhibitor of heme biosynthesis.
xi-2,3-Dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4-one
(3AS,6AR)-TETRAHYDRO-4-METHOXY FURO (3,4-B)FURAN-2(3H)-ONE
1,2-Cyclopropanedicarboxylicacid,monoethylester(9CI)
(3aS,4S,6aR)-4-methoxy-tetrahydro-furo[3.4-b]furan-2(3H)-one
5D-(5/6)-2,6-dihydroxy-5-(hydroxymethyl)cyclohex-2-en-1-one
(1S,4S)-4-hydroxy-3-oxocyclohexane-1-carboxylic acid
3-methyladipate(2-)
A dicarboxylic acid dianion obtained by deprotonation of both carboxy groups of 3-methyladipic acid.
pimelate(2-)
A dicarboxylic acid dianion obtained by the deprotonation of both the carboxy groups of pimelic acid.
