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Record Information
Version4.0
StatusExpected but not Quantified
Creation Date2009-04-06 16:21:36 UTC
Update Date2020-03-13 14:39:29 UTC
HMDB IDHMDB0012241
Secondary Accession Numbers
  • HMDB12241
Metabolite Identification
Common NameIsopropylmaleic acid
Description2-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.
Structure
Data?1584110369
Synonyms
ValueSource
2-IsopropylmaleateChEBI
beta-IsopropylmaleateChEBI
2-Isopropylmaleic acidGenerator
Isopropylmaleic acidGenerator
b-IsopropylmaleateGenerator
b-Isopropylmaleic acidGenerator
beta-Isopropylmaleic acidGenerator
β-IsopropylmaleateGenerator
β-isopropylmaleic acidGenerator
(2Z)-2-(1-Methylethyl)-2-butenedioic acidHMDB
IsopropylmaleateHMDB
Chemical FormulaC7H10O4
Average Molecular Weight158.1519
Monoisotopic Molecular Weight158.057908808
IUPAC Name(2Z)-2-(propan-2-yl)but-2-enedioic acid
Traditional Name2-isopropylmaleic acid
CAS Registry Number44976-69-4
SMILES
CC(C)C(=C\C(O)=O)\C(O)=O
InChI Identifier
InChI=1S/C7H10O4/c1-4(2)5(7(10)11)3-6(8)9/h3-4H,1-2H3,(H,8,9)(H,10,11)/b5-3-
InChI KeyNJMGRJLQRLFQQX-HYXAFXHYSA-N
Chemical Taxonomy
Description 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.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassFatty Acyls
Sub ClassFatty acids and conjugates
Direct ParentMethyl-branched fatty acids
Alternative Parents
Substituents
  • Methyl-branched fatty acid
  • Unsaturated fatty acid
  • Dicarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
Disposition

Route of exposure:

Source:

Biological location:

Process

Naturally occurring process:

Role

Industrial application:

Biological role:

Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
Water Solubility3.64 g/LALOGPS
logP1.05ALOGPS
logP1.09ChemAxon
logS-1.6ALOGPS
pKa (Strongest Acidic)2.79ChemAxon
Physiological Charge-2ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area74.6 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity38.11 m³·mol⁻¹ChemAxon
Polarizability15.11 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-01ox-9800000000-c1dc75af0432077c0384Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (2 TMS) - 70eV, Positivesplash10-00dr-9470000000-5b930a576d9e4924347aSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0006-1900000000-45d74194c5fbfea04a10Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-01ox-7900000000-7e85e22040474be6339cSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-014j-9100000000-672bc73595a1f6b84201Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0bt9-1900000000-48b9e2f85f15343470aeSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-090a-5900000000-5c4991c8530e2f8a6edaSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-00kb-9400000000-0d37fa6e2313dc5f09a3Spectrum
Biological Properties
Cellular Locations
  • Extracellular
  • Membrane
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB030340
KNApSAcK IDNot Available
Chemspider ID4444164
KEGG Compound IDC02631
BioCyc IDCPD-9451
BiGG IDNot Available
Wikipedia LinkIsopropylmalic_acid
METLIN IDNot Available
PubChem Compound5280533
PDB IDNot Available
ChEBI ID17275
Food Biomarker OntologyNot Available
VMH ID2IPPM
MarkerDB ID
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Simons K, Toomre D: Lipid rafts and signal transduction. Nat Rev Mol Cell Biol. 2000 Oct;1(1):31-9. [PubMed:11413487 ]
  2. Watson AD: Thematic review series: systems biology approaches to metabolic and cardiovascular disorders. Lipidomics: a global approach to lipid analysis in biological systems. J Lipid Res. 2006 Oct;47(10):2101-11. Epub 2006 Aug 10. [PubMed:16902246 ]
  3. Sethi JK, Vidal-Puig AJ: Thematic review series: adipocyte biology. Adipose tissue function and plasticity orchestrate nutritional adaptation. J Lipid Res. 2007 Jun;48(6):1253-62. Epub 2007 Mar 20. [PubMed:17374880 ]
  4. Lingwood D, Simons K: Lipid rafts as a membrane-organizing principle. Science. 2010 Jan 1;327(5961):46-50. doi: 10.1126/science.1174621. [PubMed:20044567 ]
  5. Gunstone, Frank D., John L. Harwood, and Albert J. Dijkstra (2007). The lipid handbook with CD-ROM. CRC Press.