Record Information
Version 1.0
Update Date 1/22/2018 11:54:54 AM
Metabolite IDPAMDB001792
Identification
Name: Citraconic acid
Description:Mesaconic acid is one of several isomeric carboxylic acids obtained from citric acid. Is used as a fire retardant, recent studies revealed this acid is a competitive inhibitor of fumarate reduction.
Structure
Thumb
Synonyms:
  • (Z)-2-Methyl-2-butenedioate
  • (Z)-2-Methyl-2-butenedioic acid
  • Citraconate
  • Methylmaleate
  • Methylmaleic acid
Chemical Formula: C5H6O4
Average Molecular Weight: 130.0987
Monoisotopic Molecular Weight: 130.02660868
InChI Key: HNEGQIOMVPPMNR-IHWYPQMZSA-N
InChI:InChI=1S/C5H6O4/c1-3(5(8)9)2-4(6)7/h2H,1H3,(H,6,7)(H,8,9)/b3-2-
CAS number: 498-23-7
IUPAC Name:(2Z)-2-methylbut-2-enedioic acid
Traditional IUPAC Name: citraconic acid
SMILES:C\C(=C\C(O)=O)C(O)=O
Chemical Taxonomy
Taxonomy DescriptionThis compound 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 only one or more methyl group. However, branches other than methyl may be present.
Kingdom Organic compounds
Super ClassLipids and lipid-like molecules
Class Fatty Acyls
Sub ClassFatty acids and conjugates
Direct Parent Methyl-branched fatty acids
Alternative Parents
Substituents
  • Methyl-branched fatty acid
  • Unsaturated fatty acid
  • Dicarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Aliphatic acyclic compound
Molecular Framework Aliphatic acyclic compounds
External Descriptors
Physical Properties
State: Solid
Charge:-2
Melting point: 88-94 °C
Experimental Properties:
PropertyValueSource
Water Solubility:783.0 mg/mL [YALKOWSKY,SH & DANNENFELSER,RM (1992)]PhysProp
Predicted Properties
PropertyValueSource
Water Solubility15.9 mg/mLALOGPS
logP0.21ALOGPS
logP0.35ChemAxon
logS-0.91ALOGPS
pKa (Strongest Acidic)2.5ChemAxon
Physiological Charge-2ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area74.6 Å2ChemAxon
Rotatable Bond Count2ChemAxon
Refractivity28.96 m3·mol-1ChemAxon
Polarizability11.17 Å3ChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Biological Properties
Cellular Locations: Cytoplasm
Reactions:
Pathways: Not Available
Spectra
Spectra:
Spectrum TypeDescriptionSplash Key
GC-MSGC-MS Spectrum - GC-MS (2 TMS)splash10-053s-9830000000-9984d183d92e149a6ab4View in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Negative (Annotated)splash10-000i-9100000000-707e9072305131e101d9View in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Negative (Annotated)splash10-0006-9000000000-2a007e703ec5aa2df51aView in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Negative (Annotated)splash10-000f-9200000000-5095d8b00331302fe65fView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 10V, Negativesplash10-004i-2900000000-98ab39de610d4d7e428dView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 20V, Negativesplash10-000i-9000000000-1786e7db899e12344315View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 30V, Negativesplash10-000i-9000000000-a1b543932fc265020973View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 40V, Negativesplash10-0006-9000000000-d5dc2c9fdcd47f64c404View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 50V, Negativesplash10-0006-9000000000-81b2f20752aef9eee2e9View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) , Negativesplash10-000i-9200000000-ddad81eb9311ec64a8c7View in MoNA
1D NMR1H NMR SpectrumNot Available
2D NMR[1H,1H] 2D NMR SpectrumNot Available
2D NMR[1H,13C] 2D NMR SpectrumNot Available
References
References:
  • Ishii, N., Nakahigashi, K., Baba, T., Robert, M., Soga, T., Kanai, A., Hirasawa, T., Naba, M., Hirai, K., Hoque, A., Ho, P. Y., Kakazu, Y., Sugawara, K., Igarashi, S., Harada, S., Masuda, T., Sugiyama, N., Togashi, T., Hasegawa, M., Takai, Y., Yugi, K., Arakawa, K., Iwata, N., Toya, Y., Nakayama, Y., Nishioka, T., Shimizu, K., Mori, H., Tomita, M. (2007). "Multiple high-throughput analyses monitor the response of E. coli to perturbations." Science 316:593-597. Pubmed: 17379776
  • Yurtsever D. (2007). Fatty acid methyl ester profiling of Enterococcus and Esherichia coli for microbial source tracking. M.sc. Thesis. Villanova University: U.S.A
Synthesis Reference: Berg, Rudolph G. Catalytic preparation of citraconic and itaconic acids. U.S. (1972), 5 pp.
Material Safety Data Sheet (MSDS) Download (PDF)
External Links:
ResourceLink
CHEBI ID17626
HMDB IDHMDB00634
Pubchem Compound ID874
Kegg IDC02226
ChemSpider ID553689
Wikipedia IDNot Available
BioCyc IDNot Available