Record Information
Version1.0
Creation Date2016-09-30 22:32:21 UTC
Update Date2020-06-04 21:45:49 UTC
BMDB IDBMDB0000535
Secondary Accession Numbers
  • BMDB00535
  • BMDB0061883
  • BMDB61883
Metabolite Identification
Common NameCaproic acid
DescriptionCaproic acid, also known as hexanoate or caproate, 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. Caproic acid exists as a liquid, very hydrophobic, practically insoluble (in water), and relatively neutral molecule. Caproic acid exists in all living species, ranging from bacteria to humans. In cattle, caproic acid is involved in the metabolic pathway called the mitochondrial Beta-oxidation OF short chain saturated fatty acids pathway. Caproic acid is a potentially toxic compound. Caproic acid has been found to be associated with several diseases known as perillyl alcohol administration for cancer treatment, nonalcoholic fatty liver disease, ulcerative colitis, and crohn's disease; also caproic acid has been linked to the inborn metabolic disorders including medium chain acyl-coa dehydrogenase deficiency.
Structure
Thumb
Synonyms
ValueSource
1-Hexanoic acidChEBI
1-Pentanecarboxylic acidChEBI
6:0ChEBI
Butylacetic acidChEBI
C6:0ChEBI
Capronic acidChEBI
CH3-[CH2]4-COOHChEBI
HexanoateChEBI
Hexoic acidChEBI
Hexylic acidChEBI
N-Caproic acidChEBI
N-Hexanoic acidChEBI
N-Hexoic acidChEBI
N-Hexylic acidChEBI
Pentanecarboxylic acidChEBI
Pentiformic acidChEBI
Pentylformic acidChEBI
1-HexanoateGenerator
1-PentanecarboxylateGenerator
ButylacetateGenerator
CapronateGenerator
Hexanoic acidGenerator
HexoateGenerator
HexylateGenerator
N-CaproateGenerator
N-HexanoateGenerator
N-HexoateGenerator
N-HexylateGenerator
PentanecarboxylateGenerator
PentiformateGenerator
PentylformateGenerator
CaproateGenerator
Hexanoic acid, calcium saltMeSH, HMDB
Hexanoic acid, sodium salt, 1-(11)C-labeledMeSH, HMDB
Hexanoic acid, nickel (2+) saltMeSH, HMDB
Hexanoic acid, sodium saltMeSH, HMDB
Bismuth(III)hexanoateMeSH, HMDB
Hexanoic acid, copper (2+) saltMeSH, HMDB
Hexanoic acid, manganese (2+) saltMeSH, HMDB
Bi(ohex)3MeSH, HMDB
Hexanoic acid, barium saltMeSH, HMDB
Hexanoic acid, potassium saltMeSH, HMDB
Hexanoic acid, rhodium (2+) saltMeSH, HMDB
FA(6:0)HMDB
Calcium N-hexanoateMeSH, HMDB
Hexanoic acid, sodium salt (1:1)MeSH, HMDB
Sodium capronateMeSH, HMDB
Calcium hexanoateMeSH, HMDB
Caproic acid sodium saltMeSH, HMDB
Sodium caproateMeSH, HMDB
Sodium hexanoateMeSH, HMDB
Chemical FormulaC6H12O2
Average Molecular Weight116.1583
Monoisotopic Molecular Weight116.083729628
IUPAC Namehexanoic acid
Traditional Namehexanoic acid
CAS Registry Number142-62-1
SMILES
CCCCCC(O)=O
InChI Identifier
InChI=1S/C6H12O2/c1-2-3-4-5-6(7)8/h2-5H2,1H3,(H,7,8)
InChI KeyFUZZWVXGSFPDMH-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
  • Straight chain 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
StatusDetected and Quantified
Origin
  • Endogenous
  • Exogenous
BiofunctionNot Available
ApplicationNot Available
Cellular locations
  • Adiposome
  • Cell membrane
  • Cytoplasm
  • Membrane
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water Solubility10.3 mg/mLNot Available
LogP1.92HANSCH,C ET AL. (1995)
Predicted Properties
PropertyValueSource
logP1.88ALOGPS
logP1.81ChemAxon
logS-1.1ALOGPS
pKa (Strongest Acidic)5.09ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area37.3 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity31.07 m³·mol⁻¹ChemAxon
Polarizability13.27 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
GC-MSGC-MS Spectrum - GC-MS (1 TMS)splash10-00yi-3900000000-8d7942410dfae70c7c9dView in MoNA
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-03di-9000000000-f4bf00b677d90d54ba69View in MoNA
GC-MSGC-MS Spectrum - GC-MS (Non-derivatized)splash10-00yi-3900000000-8d7942410dfae70c7c9dView in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0006-9000000000-9ee618fa3c0bd9d56748View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (1 TMS) - 70eV, Positivesplash10-00fr-9200000000-be939d8c0455d1af93a6View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_1_1) - 70eV, PositiveNot AvailableView in JSpectraViewer
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Negative (Annotated)splash10-014i-0900000000-ba8c7078846c268d61a6View in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Negative (Annotated)splash10-03di-0900000000-151d5971be58b6799d2eView in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Negative (Annotated)splash10-02t9-1900000000-36096ef7dfebaa193910View in MoNA
LC-MS/MSLC-MS/MS Spectrum - EI-B (HITACHI M-80B) , Positivesplash10-03di-9000000000-f4bf00b677d90d54ba69View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 10V, Negativesplash10-014i-0900000000-f5b00c5e9d90d801ab16View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 20V, Negativesplash10-014i-0900000000-5013166dd3b692762812View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 30V, Negativesplash10-014i-5900000000-52b3e7f8b01498621772View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 40V, Negativesplash10-0006-9000000000-e3af905666760ff49069View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-014i-0900000000-f5b00c5e9d90d801ab16View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-014i-0900000000-5013166dd3b692762812View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-014i-5900000000-52b3e7f8b01498621772View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-0006-9000000000-e3af905666760ff49069View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-IT , negativesplash10-01b9-6900000000-763e9a8e0f15e13fae3cView in MoNA
LC-MS/MSLC-MS/MS Spectrum - 35V, Positivesplash10-0002-9000000000-df670aaa002d77689cc7View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-014j-9700000000-5489131065e0934751a7View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-05fs-9100000000-68f7c2883fb339578aceView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a4l-9000000000-8e5e925d60baa2f176c2View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-014i-2900000000-e877f22e42e8323f59e3View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-01b9-9800000000-b5d583466919719819a1View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4l-9000000000-791ecce51d7cdde8f0f5View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-05tg-9000000000-b176d73a7b4fabde1ad4View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-006x-9000000000-08e066ae069da04a8689View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-052f-9000000000-808b7302aa744c7a1c20View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0002-9000000000-21c5ae8d52f2e0f4cd33View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-004j-9000000000-3e67c250e6a67f63a0ddView in MoNA
MSMass Spectrum (Electron Ionization)splash10-03di-9000000000-fe3fab44832ddab1082eView in MoNA
1D NMR1H NMR Spectrum (1D, 500 MHz, H2O, experimental)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 400 MHz, CDCl3, experimental)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 25.16 MHz, CDCl3, experimental)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, D2O, experimental)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, D2O, experimental)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
2D NMR[1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, H2O, experimental)Not AvailableView in JSpectraViewer
Biological Properties
Cellular Locations
  • Adiposome
  • Cell membrane
  • Cytoplasm
  • Membrane
Biospecimen Locations
  • Milk
  • Placenta
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
MilkDetected and Quantified12.8 +/- 0.2 uMNot SpecifiedNot Specified
Normal
details
MilkDetected and Quantified14.3 +/- 0.2 uMNot SpecifiedNot Specified
Normal
details
MilkDetected and Quantified10.5 +/- 0.2 uMNot SpecifiedNot Specified
Normal
details
MilkDetected and Quantified11.8 +/- 0.3 uMNot SpecifiedNot Specified
Normal
details
MilkDetected and Quantified20.39 +/- 1.9 uMNot SpecifiedNot Specified
Normal
    • Bashar Amer, Caro...
details
MilkDetected and Quantified19.11 +/- 2.55 uMNot SpecifiedNot Specified
Normal
    • Bashar Amer, Caro...
details
MilkDetected and Quantified7.65 +/- 1.91 uMNot SpecifiedNot Specified
Normal
    • Bashar Amer, Caro...
details
MilkDetected and Quantified8.92 +/- 1.27 uMNot SpecifiedNot Specified
Normal
    • Bashar Amer, Caro...
details
MilkDetected but not QuantifiedNot QuantifiedNot SpecifiedNot Specified
Normal
details
MilkDetected but not QuantifiedNot QuantifiedNot SpecifiedNot Specified
Normal
details
MilkDetected and Quantified3615.76 uMNot SpecifiedNot Specified
Normal
details
MilkDetected and Quantified3443.58 uMNot SpecifiedNot Specified
Normal
details
MilkDetected and Quantified602.626 uMNot SpecifiedNot Specified
Normal
details
MilkDetected and Quantified1893.967 uMNot SpecifiedNot Specified
Normal
details
MilkDetected and Quantified602.626 uMNot SpecifiedNot Specified
Normal
details
MilkDetected and Quantified17.48 +/- 0.03 uMNot SpecifiedNot Specified
Normal
    • Bashar Amer, Caro...
details
MilkDetected and Quantified6542.795 uMNot SpecifiedNot Specified
Normal
details
MilkDetected and Quantified7489.78 uMNot SpecifiedNot Specified
Normal
details
MilkDetected and Quantified6887.15 uMNot SpecifiedNot Specified
Normal
details
MilkDetected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal details
MilkDetected and Quantified25.31 +/- 0.43 uMNot SpecifiedNot Specified
Normal
    • Catrienus De Jong...
details
MilkDetected and Quantified11191.653 +/- 5165.378 uMNot SpecifiedNot Specified
Normal
details
MilkDetected but not QuantifiedNot QuantifiedNot SpecifiedNot Specified
Normal
    • Kurt J. Boudonck,...
details
MilkDetected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
    • Kurt J. Boudonck,...
details
MilkDetected and Quantified7661.978 +/- 1463.524 uMNot SpecifiedNot Specified
Normal
    • M. Ferrand et al....
details
MilkDetected and Quantified7403.709 +/- 1291.345 uMNot SpecifiedNot Specified
Normal
    • M. Ferrand et al....
details
MilkDetected but not QuantifiedNot QuantifiedNot SpecifiedNot Specified
Normal
    • Lawrence K. Cream...
details
MilkDetected and Quantified0.7 (0.3 - 14) uMNot SpecifiedNot Specified
Normal
    • Harper, W. J., Go...
details
MilkDetected and Quantified0.8 (0.3 - 15) uMNot SpecifiedNot Specified
Normal
    • Harper, W. J., Go...
details
MilkDetected and Quantified1.0 (0.4 - 18) uMNot SpecifiedNot Specified
Normal
    • Harper, W. J., Go...
details
MilkDetected and Quantified6.0 (2.2 - 8.9) uMNot SpecifiedNot Specified
Normal
    • Harper, W. J., Go...
details
PlacentaExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
Abnormal Concentrations
Not Available
HMDB IDHMDB0000535
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB013897
KNApSAcK IDC00001218
Chemspider ID8552
KEGG Compound IDC01585
BioCyc IDHEXANOATE
BiGG IDNot Available
Wikipedia LinkHexanoic_acid
METLIN ID5520
PubChem Compound8892
PDB IDNot Available
ChEBI ID30776
References
Synthesis ReferenceGao, Fei; Wu, Zongwei. Process for preparation of hexanoic acid by oxidation of 2-octanol with nitric acid. Faming Zhuanli Shenqing Gongkai Shuomingshu (2005), 7pp.
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Soyeurt H, Dardenne P, Dehareng F, Lognay G, Veselko D, Marlier M, Bertozzi C, Mayeres P, Gengler N: Estimating fatty acid content in cow milk using mid-infrared spectrometry. J Dairy Sci. 2006 Sep;89(9):3690-5. doi: 10.3168/jds.S0022-0302(06)72409-2. [PubMed:16899705 ]
  2. Jensen RG: The composition of bovine milk lipids: January 1995 to December 2000. J Dairy Sci. 2002 Feb;85(2):295-350. doi: 10.3168/jds.S0022-0302(02)74079-4. [PubMed:11913692 ]
  3. Jensen RG, Ferris AM, Lammi-Keefe CJ: The composition of milk fat. J Dairy Sci. 1991 Sep;74(9):3228-43. doi: 10.3168/jds.S0022-0302(91)78509-3. [PubMed:1779072 ]
  4. Colman E, Fokkink WB, Craninx M, Newbold JR, De Baets B, Fievez V: Effect of induction of subacute ruminal acidosis on milk fat profile and rumen parameters. J Dairy Sci. 2010 Oct;93(10):4759-73. doi: 10.3168/jds.2010-3158. [PubMed:20855010 ]
  5. GARTON GA: THE COMPOSITION AND BIOSYNTHESIS OF MILK LIPIDS. J Lipid Res. 1963 Jul;4:237-54. [PubMed:14168161 ]
  6. Antunes-Fernandes EC, van Gastelen S, Dijkstra J, Hettinga KA, Vervoort J: Milk metabolome relates enteric methane emission to milk synthesis and energy metabolism pathways. J Dairy Sci. 2016 Aug;99(8):6251-6262. doi: 10.3168/jds.2015-10248. Epub 2016 May 26. [PubMed:27236769 ]
  7. van Gastelen S, Antunes-Fernandes EC, Hettinga KA, Dijkstra J: Relationships between methane emission of Holstein Friesian dairy cows and fatty acids, volatile metabolites and non-volatile metabolites in milk. Animal. 2017 Sep;11(9):1539-1548. doi: 10.1017/S1751731117000295. Epub 2017 Feb 21. [PubMed:28219465 ]
  8. M. Ferrand, B. Huquet. S. Barbey, F. Barillet, F. Faucon, H. Larroque, O. Leray, J.M. Trommenschlager, M. Brochard (2011). M. Ferrand et al. Determination of fatty acid profile in cow's milk using mid-infrared spectrometry: Interest of applying a variable selection by genetic algorithms before a PLS regression. Chemometrics and Intelligent Laboratory Systems 106 (2011) 183?189. Chemometrics and Intelligent Laboratory Systems.
  9. Lawrence K. Creamer, Alastair K.H. MacGibbon (1996). Lawrence K. Creamer, Alastair K.H. MacGibbon. Some recent advances in the basic chemistry of milk proteins and lipids. International Dairy J. (1996) 6(6):539-568 doi: 10.1016/0958-6946(96)85309-X. International Dairy Journal.
  10. Kurt J. Boudonck, Matthew W. Mitchell, Jacob Wulff and John A. Ryals (2009). Kurt J. Boudonck, Matthew W. Mitchell, Jacob Wulff and John A. Ryals. Characterization of the biochemical variability of bovine milk using metabolomics. Metabolomics (2009) 5:375?386. Metabolomics.
  11. Kurt J. Boudonck, Matthew W. Mitchell, Jacob Wulff and John A. Ryals (2009). Kurt J. Boudonck, Matthew W. Mitchell, Jacob Wulff, John A. Ryals. Characterization of the biochemical variability of bovine milk using metabolomics. Metabolomics (2009) 5:375-386 doi: 10.1007/s11306-009-0160-8. Metabolomics.
  12. Fooddata+, The Technical University of Denmark (DTU) [Link]

Enzymes

General function:
Lipid transport and metabolism
Specific function:
Catalyzes the synthesis of acetyl-CoA from short-chain fatty acids (By similarity). Propionate is the preferred substrate but can also utilize acetate and butyrate with a much lower affinity.
Gene Name:
ACSS3
Uniprot ID:
A7MB45
Molecular weight:
74805.0
Reactions
Caproic acid + Adenosine triphosphate + Coenzyme A → Hexanoyl-CoA + Adenosine monophosphate + Pyrophosphatedetails
General function:
Secondary metabolites biosynthesis, transport and catabolism
Specific function:
Fatty acid synthetase catalyzes the formation of long-chain fatty acids from acetyl-CoA, malonyl-CoA and NADPH. This multifunctional protein has 7 catalytic activities as an acyl carrier protein.
Gene Name:
FASN
Uniprot ID:
Q71SP7
Molecular weight:
274554.0
Reactions
trans-Hex-2-enoic acid → Caproic aciddetails
Caproic acid + Malonic acid → 3-Oxooctanoic aciddetails