Record Information
Version1.0
StatusDetected and Quantified
Creation Date2021-11-23 23:18:20 UTC
Update Date2024-04-30 20:33:32 UTC
Metabolite IDMMDBc0047950
Metabolite Identification
Common Namecis,cis-Muconic acid
Descriptioncis-cis-Muconic acid is a presumptive metabolite of benzene. Muconic acid was first isolated from the urine of rabbits and dogs in 1909 (M. Jaffe, Z Physiol Chem 62:58-67). It was originally thought that if muconic acid was formed by the opening of the benzene ring in vivo then the cis-cis isomer should be the initial (and primary) product. However subsequent studies conducted in the 1950s proved that trans-trans-muconic acid is a true metabolite of benzene in mammals (Parke DV, Williams RT. Biochem J 51:339-348 (1952)). Furthermore, dosing rabbits with phenol or catechol also resulted in the urinary excretion of trans-trans-muconic acid. The oxidative ring opening of benzene first gives rise to cis-cis-muconaldehyde, which then isomerizes to cis-trans- and trans-trans-muconaldehyde; the latter is oxidized in vivo to trans-trans-muconic acid. Isomerization of the trans-trans form may take place in vivo to yield small amounts if the cis-cis and cis-trans form of muconic acid. cis-cis-Muconic acid may also be generated from microbial fermentation of benzoic acid. Certain strains of arthobacter are particularly efficient at this process. cis-cis-Muconic acid can also be found in Pseudomonas and Escherichia coli (https://link.springer.com/article/10.1007/BF00250491) (PMID:26360870 ).
Structure
Synonyms
ValueSource
(2Z,4Z)-HEXA-2,4-dienedioIC ACIDChEBI
(Z,Z)-2,4-Hexadienedioic acidChEBI
cis,cis-2,4-Hexadienedioic acidChEBI
cis,cis-HexadienedioateKegg
(2Z,4Z)-HEXA-2,4-dienedioateGenerator
(Z,Z)-2,4-HexadienedioateGenerator
cis,cis-2,4-HexadienedioateGenerator
cis,cis-Hexadienedioic acidGenerator
cis,cis-MuconateGenerator
trans-trans-MuconateHMDB
2,4-HexadienedioateHMDB
2,4-Hexadienedioic acidHMDB
Muconic acidHMDB
Muconic acid, (e,e)-isomerHMDB
trans-beta-Hydromuconic acidHMDB
trans,trans-Muconic acidHMDB
Molecular FormulaC6H6O4
Average Mass142.1094
Monoisotopic Mass142.02660868
IUPAC Name(2Z,4Z)-hexa-2,4-dienedioic acid
Traditional Namemuconic acid
CAS Registry Number1119-72-8
SMILES
OC(=O)\C=C/C=C\C(O)=O
InChI Identifier
InChI=1S/C6H6O4/c7-5(8)3-1-2-4-6(9)10/h1-4H,(H,7,8)(H,9,10)/b3-1-,4-2-
InChI KeyTXXHDPDFNKHHGW-CCAGOZQPSA-N