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Record Information
Version5.0
StatusDetected and Quantified
Creation Date2012-09-11 18:30:08 UTC
Update Date2022-03-07 02:53:50 UTC
HMDB IDHMDB0033742
Secondary Accession Numbers
  • HMDB33742
Metabolite Identification
Common Name(S)-2-Methylbutanoic acid
Description(S)-2-Methylbutanoic acid, also known as (S)-a-methylbutanoate, 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. Based on a literature review a small amount of articles have been published on (S)-2-Methylbutanoic acid.
Structure
Data?1563862453
Synonyms
ValueSource
(S)-alpha-Methylbutanoic acidChEBI
(S)-a-MethylbutanoateGenerator
(S)-a-Methylbutanoic acidGenerator
(S)-alpha-MethylbutanoateGenerator
(S)-Α-methylbutanoateGenerator
(S)-Α-methylbutanoic acidGenerator
(S)-2-MethylbutanoateGenerator
(+)-(S)-2-Methylbutanoic acidHMDB
(+)-2-Methylbutanoic acidHMDB
(+)-2-Methylbutyric acidHMDB
(+)-alpha-Methylbutyric acidHMDB
(2S)-2-Methylbutanoic acidHMDB
(S)-(+)-2-Methylbutyric acidHMDB
(S)-2-Methylbutyric acidHMDB
2-Methyl-(2S)-butanoic acidHMDB
2-Methyl-(S)-butanoic acidHMDB
Butyric acid, 2-methyl-, (S)- (8ci)HMDB
Butyric acid, 2-methyl-, L- (6ci)HMDB
S-(+)-2-Methylbutanoic acidHMDB
(S)-2-Methylbutanoic acidChEBI
(S)-2-MethylbutyrateGenerator
Chemical FormulaC5H10O2
Average Molecular Weight102.1317
Monoisotopic Molecular Weight102.068079564
IUPAC Name(2S)-2-methylbutanoic acid
Traditional Name(S)-2-methylbutanoic acid
CAS Registry Number1730-91-2
SMILES
CC[C@H](C)C(O)=O
InChI Identifier
InChI=1S/C5H10O2/c1-3-4(2)5(6)7/h4H,3H2,1-2H3,(H,6,7)/t4-/m0/s1
InChI KeyWLAMNBDJUVNPJU-BYPYZUCNSA-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
Ontology
Physiological effectNot Available
Disposition
Process
Role
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling Point175.00 to 176.00 °C. @ 760.00 mm Hg (est)The Good Scents Company Information System
Water Solubility28110 mg/L @ 25 °C (est)The Good Scents Company Information System
LogP1.18Not Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility57.2 g/LALOGPS
logP1.47ALOGPS
logP1.46ChemAxon
logS-0.25ALOGPS
pKa (Strongest Acidic)4.97ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area37.3 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity26.45 m³·mol⁻¹ChemAxon
Polarizability10.98 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]+121.55431661259
DarkChem[M-H]-116.94431661259
DeepCCS[M+H]+121.74730932474
DeepCCS[M-H]-118.94730932474
DeepCCS[M-2H]-155.43930932474
DeepCCS[M+Na]+130.21330932474
AllCCS[M+H]+126.332859911
AllCCS[M+H-H2O]+122.032859911
AllCCS[M+NH4]+130.332859911
AllCCS[M+Na]+131.532859911
AllCCS[M-H]-127.032859911
AllCCS[M+Na-2H]-131.032859911
AllCCS[M+HCOO]-135.332859911

Predicted Retention Times

Underivatized

Chromatographic MethodRetention TimeReference
Measured using a Waters Acquity ultraperformance liquid chromatography (UPLC) ethylene-bridged hybrid (BEH) C18 column (100 mm × 2.1 mm; 1.7 μmparticle diameter). Predicted by Afia on May 17, 2022. Predicted by Afia on May 17, 2022.2.72 minutes32390414
Predicted by Siyang on May 30, 202211.3424 minutes33406817
Predicted by Siyang using ReTip algorithm on June 8, 20223.36 minutes32390414
AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid66.2 seconds40023050
Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid1391.5 seconds40023050
Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid400.6 seconds40023050
Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid121.4 seconds40023050
Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid247.6 seconds40023050
RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid91.4 seconds40023050
Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid395.9 seconds40023050
BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid463.9 seconds40023050
HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate)126.1 seconds40023050
UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid805.5 seconds40023050
BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid337.2 seconds40023050
UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid1031.5 seconds40023050
SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid266.6 seconds40023050
RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid308.7 seconds40023050
MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate464.0 seconds40023050
KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA346.6 seconds40023050
Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water122.0 seconds40023050

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
(S)-2-Methylbutanoic acidCC[C@H](C)C(O)=O1497.7Standard polar33892256
(S)-2-Methylbutanoic acidCC[C@H](C)C(O)=O837.4Standard non polar33892256
(S)-2-Methylbutanoic acidCC[C@H](C)C(O)=O869.2Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
(S)-2-Methylbutanoic acid,1TMS,isomer #1CC[C@H](C)C(=O)O[Si](C)(C)C947.1Semi standard non polar33892256
(S)-2-Methylbutanoic acid,1TBDMS,isomer #1CC[C@H](C)C(=O)O[Si](C)(C)C(C)(C)C1159.5Semi standard non polar33892256
Spectra
Biological Properties
Cellular Locations
  • Cytoplasm
  • Extracellular
  • Membrane
Biospecimen Locations
  • Feces
  • Saliva
  • Urine
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
FecesDetected and Quantified735.913 +/- 226.276 nmol/g wet fecesNot SpecifiedNot Specified
Normal
details
FecesDetected and Quantified1150 +/- 880 nmol/g wet fecesAdult (>18 years old)Female
Normal
details
FecesDetected but not QuantifiedNot QuantifiedNot SpecifiedNot Specified
Normal
details
FecesDetected but not QuantifiedNot QuantifiedChildren (1-13 years old)Not Specified
Normal
details
SalivaDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Normal
    • Zerihun T. Dame, ...
details
UrineDetected but not QuantifiedNot QuantifiedAdult (>18 years old)BothNormal details
Abnormal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
FecesDetected but not QuantifiedNot QuantifiedChildren (1-13 years old)Not Specified
Treated celiac disease
details
UrineDetected but not QuantifiedNot QuantifiedAdult (>18 years old)BothBreast cancer details
Associated Disorders and Diseases
Disease References
Celiac disease
  1. Di Cagno R, De Angelis M, De Pasquale I, Ndagijimana M, Vernocchi P, Ricciuti P, Gagliardi F, Laghi L, Crecchio C, Guerzoni ME, Gobbetti M, Francavilla R: Duodenal and faecal microbiota of celiac children: molecular, phenotype and metabolome characterization. BMC Microbiol. 2011 Oct 4;11:219. doi: 10.1186/1471-2180-11-219. [PubMed:21970810 ]
Perillyl alcohol administration for cancer treatment
  1. Silva CL, Passos M, Camara JS: Solid phase microextraction, mass spectrometry and metabolomic approaches for detection of potential urinary cancer biomarkers--a powerful strategy for breast cancer diagnosis. Talanta. 2012 Jan 30;89:360-8. doi: 10.1016/j.talanta.2011.12.041. Epub 2011 Dec 22. [PubMed:22284503 ]
Associated OMIM IDs
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB011870
KNApSAcK IDC00052497
Chemspider ID395556
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound448893
PDB IDSMB
ChEBI ID38655
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDrw1141241
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.