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Record Information
Version1.0
Creation Date2016-09-30 22:35:26 UTC
Update Date2020-06-04 20:31:42 UTC
MCDB ID BMDB0000718
Secondary Accession Numbers
  • BMDB00718
Metabolite Identification
Common NameIsovaleric acid
Description3-Methylbutanoic acid, also known as isovalerate or 3-methylbutyrate, 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. 3-Methylbutanoic acid exists as a solid, very hydrophobic, practically insoluble (in water), and relatively neutral molecule. 3-Methylbutanoic acid exists in all living species, ranging from bacteria to humans. 3-Methylbutanoic acid has been found to be associated with several diseases known as crohn's disease, ulcerative colitis, autism, and nonalcoholic fatty liver disease; also 3-methylbutanoic acid has been linked to the inborn metabolic disorders including isovaleric acidemia.
Structure
Thumb
Synonyms
ValueSource
3-Methyl-N-butyric acidChEBI
3-Methylbutanoic acidChEBI
3-MethylbuttersaeureChEBI
3-Methylbutyric acidChEBI
beta-Methylbutyric acidChEBI
Delphinic acidChEBI
Isobutylformic acidChEBI
Isopentanoic acidChEBI
Isopropylacetic acidChEBI
IsovalerateChEBI
Isovalerianic acidChEBI
IsovaleriansaeureChEBI
3-Methyl-N-butyrateGenerator
3-MethylbutanoateGenerator
3-MethylbutyrateGenerator
b-MethylbutyrateGenerator
b-Methylbutyric acidGenerator
beta-MethylbutyrateGenerator
Β-methylbutyrateGenerator
Β-methylbutyric acidGenerator
DelphinateGenerator
IsobutylformateGenerator
IsopentanoateGenerator
IsopropylacetateGenerator
IsovalerianateGenerator
3-Methyl butyric acidHMDB
3-Methylbutyric acid: isopropyl-acetateHMDB
3-Methylbutyric acid: isopropyl-acetic acidHMDB
3-Methyl-1-butanoic acidHMDB
Isovaleric acidKEGG
Chemical FormulaC5H10O2
Average Molecular Weight102.1317
Monoisotopic Molecular Weight102.068079564
IUPAC Name3-methylbutanoic acid
Traditional Nameisovaleric acid
CAS Registry Number503-74-2
SMILES
CC(C)CC(O)=O
InChI Identifier
InChI=1S/C5H10O2/c1-4(2)3-5(6)7/h4H,3H2,1-2H3,(H,6,7)
InChI KeyGWYFCOCPABKNJV-UHFFFAOYSA-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
  • Monocarboxylic 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
Physical Properties
StateLiquid
Experimental Properties
PropertyValueReference
Melting Point-29.3 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility40.7 mg/mLNot Available
LogP1.16HANSCH,C ET AL. (1995)
Predicted Properties
PropertyValueSource
logP1.26ALOGPS
logP1.21ChemAxon
logS-0.2ALOGPS
pKa (Strongest Acidic)5.01ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area37.3 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity26.42 m³·mol⁻¹ChemAxon
Polarizability10.99 ųChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectrum TypeDescriptionSplash KeyView
Concentrations
StatusValueReferenceDetails
Detected and Quantified2 +/- 1 uMFree fatty acid details
Detected and Quantified1.0 +/- 0.6 uMFree fatty acid details
Detected and Quantified0.9 +/- 0.3 uMFree fatty acid details
Detected and Quantified0.8 +/- 0.4 uMFree fatty acid details
HMDB IDHMDB0000718
DrugBank IDDB03750
Phenol Explorer Compound IDNot Available
FoodDB IDFDB001324
KNApSAcK IDC00001189
Chemspider ID10001
KEGG Compound IDC08262
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia Link3-Methylbutanoic acid
METLIN ID109
PubChem Compound10430
PDB IDNot Available
ChEBI ID28484
References
Synthesis ReferenceImada, Yukio; Mizuno, Sumiko; Mikawa, Takashi. Manufacture of isovaleric acid and 2-methylbutyric acid. Jpn. Kokai Tokkyo Koho (1986), 3 pp.
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. A. Foroutan et al. (2019). A. Foroutan et al. The Chemical Composition of Commercial Cow's Milk (in preparation). Journal of Agricultural and Food Chemistry.