Hmdb loader
Survey
You are using an unsupported browser. Please upgrade your browser to a newer version to get the best experience on Human Metabolome Database.
Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2012-09-11 17:41:41 UTC
Update Date2023-02-21 17:20:06 UTC
HMDB IDHMDB0031221
Secondary Accession Numbers
  • HMDB31221
Metabolite Identification
Common Name2-Ethylbutanoic acid
Description2-Ethylbutanoic acid, also known as 2-ethylbutanoate, belongs to the class of organic compounds known as branched fatty acids. These are fatty acids containing a branched chain. Based on a literature review a small amount of articles have been published on 2-Ethylbutanoic acid.
Structure
Data?1677000006
Synonyms
ValueSource
2-EthylbutanoateGenerator
2-Ethyl-butyric acidChEMBL, HMDB
2-Ethyl-butyrateGenerator, HMDB
(C2H5)2chcoohHMDB
2-Ethyl butanoic acidHMDB
2-Ethyl-butanoic acidHMDB
2-Ethyl-N-butyric acidHMDB
2-Ethylbutyric acidHMDB
2-Ethylbutyric acid, 8ciHMDB
3-Pentane-carboxylic acidHMDB
3-Pentanecarboxylic acidHMDB
a-Ethylbutyric acidHMDB
alpha-Ethylbutyric acidHMDB
alpha-Ethylbuytyric acidHMDB
Diethyl acetic acidHMDB
Diethyl-acetic acidHMDB
Diethylacetic acidHMDB
FEMA 2429HMDB
Pentane-3-carboxylic acidHMDB
Diethyl acetateGenerator
Chemical FormulaC6H12O2
Average Molecular Weight116.1583
Monoisotopic Molecular Weight116.083729628
IUPAC Name2-ethylbutanoic acid
Traditional Name2-ethylbutyric acid
CAS Registry Number88-09-5
SMILES
CCC(CC)C(O)=O
InChI Identifier
InChI=1S/C6H12O2/c1-3-5(4-2)6(7)8/h5H,3-4H2,1-2H3,(H,7,8)
InChI KeyOXQGTIUCKGYOAA-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as branched fatty acids. These are fatty acids containing a branched chain.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassFatty Acyls
Sub ClassFatty acids and conjugates
Direct ParentBranched fatty acids
Alternative Parents
Substituents
  • 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
Process
Role
Physical Properties
StateLiquid
Experimental Molecular Properties
PropertyValueReference
Melting Point-15 °CNot Available
Boiling Point99.00 to 101.00 °C. @ 18.00 mm HgThe Good Scents Company Information System
Water Solubility18 mg/mL at 20 °CNot Available
LogP1.68Not Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility18.5 g/LALOGPS
logP1.74ALOGPS
logP1.91ChemAxon
logS-0.8ALOGPS
pKa (Strongest Acidic)5.04ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area37.3 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity31.05 m³·mol⁻¹ChemAxon
Polarizability12.92 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]+125.84831661259
DarkChem[M-H]-121.89631661259
DeepCCS[M+H]+132.52730932474
DeepCCS[M-H]-129.75230932474
DeepCCS[M-2H]-166.25530932474
DeepCCS[M+Na]+140.89230932474
AllCCS[M+H]+129.132859911
AllCCS[M+H-H2O]+124.832859911
AllCCS[M+NH4]+133.132859911
AllCCS[M+Na]+134.232859911
AllCCS[M-H]-127.832859911
AllCCS[M+Na-2H]-131.132859911
AllCCS[M+HCOO]-134.832859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
2-Ethylbutanoic acidCCC(CC)C(O)=O1698.0Standard polar33892256
2-Ethylbutanoic acidCCC(CC)C(O)=O930.9Standard non polar33892256
2-Ethylbutanoic acidCCC(CC)C(O)=O958.6Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
2-Ethylbutanoic acid,1TMS,isomer #1CCC(CC)C(=O)O[Si](C)(C)C1006.0Semi standard non polar33892256
2-Ethylbutanoic acid,1TBDMS,isomer #1CCC(CC)C(=O)O[Si](C)(C)C(C)(C)C1215.6Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental GC-MSGC-MS Spectrum - 2-Ethylbutanoic acid EI-B (Non-derivatized)splash10-007c-9000000000-dbe4308a7aba1f8b1fdf2017-09-12HMDB team, MONA, MassBankView Spectrum
Experimental GC-MSGC-MS Spectrum - 2-Ethylbutanoic acid EI-B (Non-derivatized)splash10-007c-9000000000-dbe4308a7aba1f8b1fdf2018-05-18HMDB team, MONA, MassBankView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 2-Ethylbutanoic acid GC-MS (Non-derivatized) - 70eV, Positivesplash10-00vl-9100000000-5476a8a41cb951ffee242017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 2-Ethylbutanoic acid GC-MS (1 TMS) - 70eV, Positivesplash10-00di-9200000000-ef619e3db9bb76f469cf2017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 2-Ethylbutanoic 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 - 2-Ethylbutanoic acid 10V, Positive-QTOFsplash10-014i-7900000000-d0f2c7acd46b28905b8e2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethylbutanoic acid 20V, Positive-QTOFsplash10-00di-9200000000-7d9fea82e813c2f83b152016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethylbutanoic acid 40V, Positive-QTOFsplash10-0096-9000000000-af987f811e7a646f50c32016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethylbutanoic acid 10V, Negative-QTOFsplash10-014i-4900000000-887e435df0b4ac88f5412016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethylbutanoic acid 20V, Negative-QTOFsplash10-00xr-9400000000-08331dd6d7c9cc7947c02016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethylbutanoic acid 40V, Negative-QTOFsplash10-00xu-9000000000-d39604dbae21a94e0a182016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethylbutanoic acid 10V, Positive-QTOFsplash10-00xu-9200000000-46b98445339efcc975022021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethylbutanoic acid 20V, Positive-QTOFsplash10-0006-9000000000-32c5d40205bdafeba3b82021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethylbutanoic acid 40V, Positive-QTOFsplash10-0006-9000000000-391959bd5ee3510956f42021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethylbutanoic acid 10V, Negative-QTOFsplash10-014i-0900000000-f02a8c6af96b787bcd372021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethylbutanoic acid 20V, Negative-QTOFsplash10-014i-4900000000-ec5300d8498008e810962021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethylbutanoic acid 40V, Negative-QTOFsplash10-00or-9000000000-2c086168692290ae8df92021-09-24Wishart LabView Spectrum

NMR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted 1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 100 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, 1000 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, 200 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, 300 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, 400 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, 500 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, 600 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, 700 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, 800 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum

IR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M-H]-)2023-02-03FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+H]+)2023-02-03FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+)2023-02-03FELIX 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 IDFDB003245
KNApSAcK IDNot Available
Chemspider ID6649
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound6915
PDB IDNot Available
ChEBI ID410868
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDrw1021031
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Herrmann K: Effects of the anticonvulsant drug valproic acid and related substances on the early development of the zebrafish (Brachydanio rerio). Toxicol In Vitro. 1993 Jan;7(1):41-54. [PubMed:20732170 ]
  2. Simons K, Toomre D: Lipid rafts and signal transduction. Nat Rev Mol Cell Biol. 2000 Oct;1(1):31-9. [PubMed:11413487 ]
  3. 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 ]
  4. 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 ]
  5. 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 ]
  6. (). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .
  7. Gunstone, Frank D., John L. Harwood, and Albert J. Dijkstra (2007). The lipid handbook with CD-ROM. CRC Press.