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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2012-09-11 21:17:21 UTC
Update Date2023-02-21 17:25:18 UTC
HMDB IDHMDB0036234
Secondary Accession Numbers
  • HMDB36234
Metabolite Identification
Common Name3-Methylbutyl 2-methylpropanoate
Description3-Methylbutyl 2-methylpropanoate, also known as isoamyl 2-methylpropanoate or isopentyl isobutyrate, belongs to the class of organic compounds known as carboxylic acid esters. These are carboxylic acid derivatives in which the carbon atom from the carbonyl group is attached to an alkyl or an aryl moiety through an oxygen atom (forming an ester group). 3-Methylbutyl 2-methylpropanoate is an apricot, banana, and fruity tasting compound. 3-Methylbutyl 2-methylpropanoate has been detected, but not quantified in, bananas (Musa acuminata). This could make 3-methylbutyl 2-methylpropanoate a potential biomarker for the consumption of these foods. 3-Methylbutyl 2-methylpropanoate is a secondary metabolite. Secondary metabolites are metabolically or physiologically non-essential metabolites that may serve a role as defense or signalling molecules. In some cases they are simply molecules that arise from the incomplete metabolism of other secondary metabolites. Based on a literature review very few articles have been published on 3-Methylbutyl 2-methylpropanoate.
Structure
Data?1677000318
Synonyms
ValueSource
Isoamyl 2-methylpropanoateChEBI
Isopentyl 2-methylpropanoateChEBI
Isopentyl isobutyrateChEBI
Isoamyl 2-methylpropanoic acidGenerator
Isopentyl 2-methylpropanoic acidGenerator
Isopentyl isobutyric acidGenerator
3-Methylbutyl 2-methylpropanoic acidGenerator
3-Methylbutyl isobutyrateHMDB
FEMA 3507HMDB
Isoamyl isobutanoateHMDB
Isoamyl isobutyrateHMDB
Isobutyric acid, isopentyl esterHMDB
Isopentyl isobutanoateHMDB
Propanoic acid, 2-methyl-, 3-methylbutyl esterHMDB
3-Methylbutyl 2-methylpropionic acidGenerator
Chemical FormulaC9H18O2
Average Molecular Weight158.238
Monoisotopic Molecular Weight158.13067982
IUPAC Name3-methylbutyl 2-methylpropanoate
Traditional Name3-methylbutyl 2-methylpropanoate
CAS Registry Number2050-01-3
SMILES
CC(C)CCOC(=O)C(C)C
InChI Identifier
InChI=1S/C9H18O2/c1-7(2)5-6-11-9(10)8(3)4/h7-8H,5-6H2,1-4H3
InChI KeyVFTGLSWXJMRZNB-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as carboxylic acid esters. These are carboxylic acid derivatives in which the carbon atom from the carbonyl group is attached to an alkyl or an aryl moiety through an oxygen atom (forming an ester group).
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassCarboxylic acid derivatives
Direct ParentCarboxylic acid esters
Alternative Parents
Substituents
  • Carboxylic acid ester
  • Monocarboxylic acid or derivatives
  • 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
Role
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling Point168.00 to 171.00 °C. @ 760.00 mm HgThe Good Scents Company Information System
Water Solubility136.1 mg/L @ 25 °C (est)The Good Scents Company Information System
LogP3.021 (est)The Good Scents Company Information System
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility0.89 g/LALOGPS
logP2.89ALOGPS
logP2.78ChemAxon
logS-2.2ALOGPS
pKa (Strongest Basic)-7.1ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area26.3 ŲChemAxon
Rotatable Bond Count5ChemAxon
Refractivity45.04 m³·mol⁻¹ChemAxon
Polarizability19.2 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]+135.86731661259
DarkChem[M-H]-133.80331661259
DeepCCS[M+H]+142.95830932474
DeepCCS[M-H]-140.39530932474
DeepCCS[M-2H]-176.70130932474
DeepCCS[M+Na]+152.03330932474
AllCCS[M+H]+137.432859911
AllCCS[M+H-H2O]+133.632859911
AllCCS[M+NH4]+140.932859911
AllCCS[M+Na]+141.932859911
AllCCS[M-H]-139.532859911
AllCCS[M+Na-2H]-141.732859911
AllCCS[M+HCOO]-144.232859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
3-Methylbutyl 2-methylpropanoateCC(C)CCOC(=O)C(C)C1225.6Standard polar33892256
3-Methylbutyl 2-methylpropanoateCC(C)CCOC(=O)C(C)C986.9Standard non polar33892256
3-Methylbutyl 2-methylpropanoateCC(C)CCOC(=O)C(C)C1018.4Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental GC-MSGC-MS Spectrum - 3-Methylbutyl 2-methylpropanoate EI-B (Non-derivatized)splash10-006x-9000000000-f52f38a23e150d10c7c82017-09-12HMDB team, MONA, MassBankView Spectrum
Experimental GC-MSGC-MS Spectrum - 3-Methylbutyl 2-methylpropanoate EI-B (Non-derivatized)splash10-006x-9000000000-f52f38a23e150d10c7c82018-05-18HMDB team, MONA, MassBankView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 3-Methylbutyl 2-methylpropanoate GC-MS (Non-derivatized) - 70eV, Positivesplash10-006x-9000000000-60dc1a049045a8956a9c2016-09-22Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 3-Methylbutyl 2-methylpropanoate 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 - 3-Methylbutyl 2-methylpropanoate 10V, Positive-QTOFsplash10-0ab9-6900000000-a0b48a6cbf5a213c22992016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Methylbutyl 2-methylpropanoate 20V, Positive-QTOFsplash10-00di-9100000000-353411580b7954eee1a52016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Methylbutyl 2-methylpropanoate 40V, Positive-QTOFsplash10-05fr-9000000000-8cfa01dae8eb02b9a9432016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Methylbutyl 2-methylpropanoate 10V, Negative-QTOFsplash10-0a4i-5900000000-f9f75abc153b20f90c8e2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Methylbutyl 2-methylpropanoate 20V, Negative-QTOFsplash10-000i-9200000000-10959c6781b619c612452016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Methylbutyl 2-methylpropanoate 40V, Negative-QTOFsplash10-00kr-9000000000-32023c69989fb151960d2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Methylbutyl 2-methylpropanoate 10V, Positive-QTOFsplash10-00di-9000000000-426f1b6001084d873f5c2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Methylbutyl 2-methylpropanoate 20V, Positive-QTOFsplash10-00di-9000000000-90c84c09ac984fce75192021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Methylbutyl 2-methylpropanoate 40V, Positive-QTOFsplash10-052f-9000000000-6d0188dd32d0a2360f582021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Methylbutyl 2-methylpropanoate 10V, Negative-QTOFsplash10-000i-9300000000-c0bdfe03b851672dec5f2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Methylbutyl 2-methylpropanoate 20V, Negative-QTOFsplash10-000i-9100000000-4535bd6e2370685905772021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Methylbutyl 2-methylpropanoate 40V, Negative-QTOFsplash10-000i-9000000000-a1bc130a2defab57a5c22021-09-22Wishart 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+Na]+)2023-02-04FELIX labView Spectrum
Biological Properties
Cellular Locations
  • 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 IDFDB015092
KNApSAcK IDC00055662
Chemspider ID453397
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound519786
PDB IDNot Available
ChEBI ID87537
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDrw1003311
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. (). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .