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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2012-09-11 17:44:15 UTC
Update Date2022-03-07 02:53:02 UTC
HMDB IDHMDB0031595
Secondary Accession Numbers
  • HMDB31595
Metabolite Identification
Common Name5-Methylhexanoic acid
Description5-Methylhexanoic acid, also known as 5-methylhexanoate or isoamylacetic acid, belongs to the class of organic compounds known as medium-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 4 and 12 carbon atoms. Based on a literature review a small amount of articles have been published on 5-Methylhexanoic acid.
Structure
Data?1563862145
Synonyms
ValueSource
5-MethylhexanoateGenerator
5-Methylhexylic acidMeSH
Isoamylacetic acidMeSH
Isoenanthic acidMeSH
Isoheptanoic acidMeSH
5-Methyl hexanoic acidHMDB
5-Methyl-hexanoic acidHMDB
5-Methylcaproic acidHMDB
FEMA 3572HMDB
Isovenanthic acidHMDB
5-Methyl-hexanoateGenerator
5-Methylhexanoic acidMeSH
Chemical FormulaC7H14O2
Average Molecular Weight130.1849
Monoisotopic Molecular Weight130.099379692
IUPAC Name5-methylhexanoic acid
Traditional Name5-methylhexanoic acid
CAS Registry Number628-46-6
SMILES
CC(C)CCCC(O)=O
InChI Identifier
InChI=1S/C7H14O2/c1-6(2)4-3-5-7(8)9/h6H,3-5H2,1-2H3,(H,8,9)
InChI KeyMHPUGCYGQWGLJL-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as medium-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 4 and 12 carbon atoms.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassFatty Acyls
Sub ClassFatty acids and conjugates
Direct ParentMedium-chain fatty acids
Alternative Parents
Substituents
  • Medium-chain fatty acid
  • 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
Ontology
Disposition

Biological location

Source

Physical Properties
StateLiquid
Experimental Molecular Properties
PropertyValueReference
Melting Point< -25 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility3.93 g/LALOGPS
logP2.22ALOGPS
logP2.1ChemAxon
logS-1.5ALOGPS
pKa (Strongest Acidic)5.15ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area37.3 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity35.62 m³·mol⁻¹ChemAxon
Polarizability15.09 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+129.80831661259
DarkChem[M-H]-125.85731661259
DeepCCS[M+H]+133.24430932474
DeepCCS[M-H]-130.38530932474
DeepCCS[M-2H]-166.77430932474
DeepCCS[M+Na]+141.90230932474

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
5-Methylhexanoic acidCC(C)CCCC(O)=O1854.5Standard polar33892256
5-Methylhexanoic acidCC(C)CCCC(O)=O1010.1Standard non polar33892256
5-Methylhexanoic acidCC(C)CCCC(O)=O1065.6Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
5-Methylhexanoic acid,1TMS,isomer #1CC(C)CCCC(=O)O[Si](C)(C)C1137.0Semi standard non polar33892256
5-Methylhexanoic acid,1TBDMS,isomer #1CC(C)CCCC(=O)O[Si](C)(C)C(C)(C)C1359.3Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental GC-MSGC-MS Spectrum - 5-Methylhexanoic acid EI-B (Non-derivatized)splash10-03kl-9000000000-af743c0a8f14eb41ed522017-09-12HMDB team, MONA, MassBankView Spectrum
Experimental GC-MSGC-MS Spectrum - 5-Methylhexanoic acid EI-B (Non-derivatized)splash10-03kl-9000000000-af743c0a8f14eb41ed522018-05-18HMDB team, MONA, MassBankView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 5-Methylhexanoic acid GC-MS (Non-derivatized) - 70eV, Positivesplash10-0006-9000000000-e7306f769ac61f12628e2017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 5-Methylhexanoic acid GC-MS (1 TMS) - 70eV, Positivesplash10-0076-9200000000-00ec537096735dd3b1e32017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 5-Methylhexanoic acid GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-Methylhexanoic acid 10V, Positive-QTOFsplash10-03di-3900000000-bfa9a7a3db66d150dbc22015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-Methylhexanoic acid 20V, Positive-QTOFsplash10-03ki-9400000000-dcb6e952f3f7f83bf1722015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-Methylhexanoic acid 40V, Positive-QTOFsplash10-0aou-9000000000-28eae882af9ddc3a80522015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-Methylhexanoic acid 10V, Negative-QTOFsplash10-004i-1900000000-4a7071092b0c5888f12a2015-04-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-Methylhexanoic acid 20V, Negative-QTOFsplash10-01ti-5900000000-348faa5c251183ed42a62015-04-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-Methylhexanoic acid 40V, Negative-QTOFsplash10-0a4l-9000000000-5635eadf9f7ccf9494942015-04-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-Methylhexanoic acid 10V, Negative-QTOFsplash10-03di-0900000000-15e971f62c6f60955c4a2021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-Methylhexanoic acid 20V, Negative-QTOFsplash10-03dl-4900000000-b6eba64dcae640bab14d2021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-Methylhexanoic acid 40V, Negative-QTOFsplash10-0006-9000000000-9dbadf114a000d6e0b382021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-Methylhexanoic acid 10V, Positive-QTOFsplash10-06s9-9200000000-725f7efc34976d78da7e2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-Methylhexanoic acid 20V, Positive-QTOFsplash10-052p-9000000000-f5747a13da29e27b75e62021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-Methylhexanoic acid 40V, Positive-QTOFsplash10-0006-9000000000-d86ee91ed2bb582b75242021-09-24Wishart LabView Spectrum

NMR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted 1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Cytoplasm
  • 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 IDFDB008226
KNApSAcK IDNot Available
Chemspider ID11839
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound12344
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
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. (). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .
  6. Gunstone, Frank D., John L. Harwood, and Albert J. Dijkstra (2007). The lipid handbook with CD-ROM. CRC Press.