Hmdb loader
Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2012-09-11 17:44:02 UTC
Update Date2023-02-21 17:20:49 UTC
HMDB IDHMDB0031557
Secondary Accession Numbers
  • HMDB31557
Metabolite Identification
Common Name4-Methyloctanoic acid
Description4-Methyloctanoic acid, also known as 4-methyloctanoate, 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 significant number of articles have been published on 4-Methyloctanoic acid.
Structure
Data?1677000049
Synonyms
ValueSource
4-MethyloctanoateGenerator
(+/-)-4-methyloctanoIC ACIDHMDB
4-Methyl-octanoic acidHMDB
4-Methylcaprylic acidHMDB
FEMA 3575HMDB
4-Methyl-octanoateGenerator
4-Methyloctanoic acidMeSH
(±)-4-methyloctanoateGenerator
Chemical FormulaC9H18O2
Average Molecular Weight158.238
Monoisotopic Molecular Weight158.13067982
IUPAC Name4-methyloctanoic acid
Traditional Name4-methyloctanoic acid
CAS Registry Number54947-74-9
SMILES
CCCCC(C)CCC(O)=O
InChI Identifier
InChI=1S/C9H18O2/c1-3-4-5-8(2)6-7-9(10)11/h8H,3-7H2,1-2H3,(H,10,11)
InChI KeyLEGGANXCVQPIAI-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
  • Methyl-branched 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
Physiological effect
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility0.39 g/LALOGPS
logP3.12ALOGPS
logP2.99ChemAxon
logS-2.6ALOGPS
pKa (Strongest Acidic)5.23ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area37.3 ŲChemAxon
Rotatable Bond Count6ChemAxon
Refractivity44.82 m³·mol⁻¹ChemAxon
Polarizability19.09 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]+136.91431661259
DarkChem[M-H]-134.86331661259
DeepCCS[M+H]+137.6530932474
DeepCCS[M-H]-134.33330932474
DeepCCS[M-2H]-171.18430932474
DeepCCS[M+Na]+146.4630932474
AllCCS[M+H]+140.732859911
AllCCS[M+H-H2O]+136.832859911
AllCCS[M+NH4]+144.432859911
AllCCS[M+Na]+145.532859911
AllCCS[M-H]-141.632859911
AllCCS[M+Na-2H]-143.632859911
AllCCS[M+HCOO]-145.932859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
4-Methyloctanoic acidCCCCC(C)CCC(O)=O2078.0Standard polar33892256
4-Methyloctanoic acidCCCCC(C)CCC(O)=O1195.2Standard non polar33892256
4-Methyloctanoic acidCCCCC(C)CCC(O)=O1238.4Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
4-Methyloctanoic acid,1TMS,isomer #1CCCCC(C)CCC(=O)O[Si](C)(C)C1304.0Semi standard non polar33892256
4-Methyloctanoic acid,1TBDMS,isomer #1CCCCC(C)CCC(=O)O[Si](C)(C)C(C)(C)C1527.1Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 4-Methyloctanoic acid GC-MS (Non-derivatized) - 70eV, Positivesplash10-0k96-9300000000-26559116ae1229b0d2f92017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 4-Methyloctanoic acid GC-MS (1 TMS) - 70eV, Positivesplash10-05tu-9200000000-d34c6aba6c270147ae3d2017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 4-Methyloctanoic acid GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 4-Methyloctanoic 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 - 4-Methyloctanoic acid 10V, Positive-QTOFsplash10-0a4l-1900000000-52a5b6500fa3262185332016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Methyloctanoic acid 20V, Positive-QTOFsplash10-06r6-8900000000-a034884d1dfc2d65ac632016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Methyloctanoic acid 40V, Positive-QTOFsplash10-052f-9000000000-364d523091f703c35e0e2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Methyloctanoic acid 10V, Negative-QTOFsplash10-0a4i-0900000000-825fad12bec3fa4f9a972016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Methyloctanoic acid 20V, Negative-QTOFsplash10-0a4i-2900000000-72035b766675f4ffd54e2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Methyloctanoic acid 40V, Negative-QTOFsplash10-0a4i-9200000000-3bfa802155c0aaa275702016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Methyloctanoic acid 10V, Positive-QTOFsplash10-0a4l-9200000000-e6d43b33ac34034edb702021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Methyloctanoic acid 20V, Positive-QTOFsplash10-0a4l-9000000000-6b879fefbeef1bce78152021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Methyloctanoic acid 40V, Positive-QTOFsplash10-0a4l-9000000000-56639a8b68b94f4d7d512021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Methyloctanoic acid 10V, Negative-QTOFsplash10-0a4i-0900000000-aac81b10f548948ce2082021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Methyloctanoic acid 20V, Negative-QTOFsplash10-0a4i-1900000000-0e13dcb57b67413b36af2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Methyloctanoic acid 40V, Negative-QTOFsplash10-0abc-9200000000-6ee96947b83d8c11bd672021-09-24Wishart LabView Spectrum

IR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M-H]-)2023-02-04FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+H]+)2023-02-04FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+)2023-02-04FELIX labView Spectrum
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 IDFDB008170
KNApSAcK IDNot Available
Chemspider ID55926
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound62089
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.