Hmdb loader
Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2012-09-11 17:44:09 UTC
Update Date2023-02-21 17:20:54 UTC
HMDB IDHMDB0031578
Secondary Accession Numbers
  • HMDB31578
Metabolite Identification
Common Name2-Methylpentanal
Description2-Methylpentanal belongs to the class of organic compounds known as organic oxides. These are organic compounds containing an oxide group. 2-Methylpentanal is an ethereal, fruity, and green tasting compound. 2-Methylpentanal has been detected, but not quantified in, garden onions (Allium cepa). This could make 2-methylpentanal a potential biomarker for the consumption of these foods. Based on a literature review a significant number of articles have been published on 2-Methylpentanal.
Structure
Data?1677000054
Synonyms
ValueSource
2-FormylpentaneHMDB
2-Methyl-N-valeraldehydeHMDB
2-Methyl-pentanalHMDB
2-Methyl-valeraldehydeHMDB
2-MethylpentalHMDB
2-MethylpentaldehydeHMDB
2-MethylvaleraldehydeHMDB
2-Methylvaleric aldehydeHMDB
alpha -Methyl valeraldehydeHMDB
alpha -MethylpentenalHMDB
alpha-MethylpentanalHMDB
alpha-MethylpentenalHMDB
alpha-MethylvaleraldehydeHMDB
FEMA 3413HMDB
Methyl-pentanalHMDB
MethylpentaldehydeHMDB
N-C3H7CH(CH3)CHOHMDB
Valeraldehyde, 2-methyl- (8ci)HMDB
Chemical FormulaC6H12O
Average Molecular Weight100.1589
Monoisotopic Molecular Weight100.088815006
IUPAC Name2-methylpentanal
Traditional Name2-methylpentaldehyde
CAS Registry Number123-15-9
SMILES
CCCC(C)C=O
InChI Identifier
InChI=1S/C6H12O/c1-3-4-6(2)5-7/h5-6H,3-4H2,1-2H3
InChI KeyFTZILAQGHINQQR-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as organic oxides. These are organic compounds containing an oxide group.
KingdomOrganic compounds
Super ClassOrganic oxygen compounds
ClassOrganic oxides
Sub ClassNot Available
Direct ParentOrganic oxides
Alternative Parents
Substituents
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Aldehyde
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External DescriptorsNot Available
Ontology
Physiological effect
Disposition
ProcessNot Available
Role
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water Solubility4.2 mg/mL at 25 °CNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility5.63 g/LALOGPS
logP1.72ALOGPS
logP1.75ChemAxon
logS-1.2ALOGPS
pKa (Strongest Acidic)16.11ChemAxon
pKa (Strongest Basic)-7ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area17.07 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity30.12 m³·mol⁻¹ChemAxon
Polarizability12.13 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]+121.0431661259
DarkChem[M-H]-116.64331661259
DeepCCS[M+H]+130.06430932474
DeepCCS[M-H]-128.12830932474
DeepCCS[M-2H]-163.82130932474
DeepCCS[M+Na]+138.40430932474
AllCCS[M+H]+125.632859911
AllCCS[M+H-H2O]+121.232859911
AllCCS[M+NH4]+129.632859911
AllCCS[M+Na]+130.832859911
AllCCS[M-H]-130.232859911
AllCCS[M+Na-2H]-134.132859911
AllCCS[M+HCOO]-138.432859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
2-MethylpentanalCCCC(C)C=O1044.9Standard polar33892256
2-MethylpentanalCCCC(C)C=O730.9Standard non polar33892256
2-MethylpentanalCCCC(C)C=O753.8Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
2-Methylpentanal,1TMS,isomer #1CCCC(C)=CO[Si](C)(C)C967.6Semi standard non polar33892256
2-Methylpentanal,1TMS,isomer #1CCCC(C)=CO[Si](C)(C)C897.9Standard non polar33892256
2-Methylpentanal,1TBDMS,isomer #1CCCC(C)=CO[Si](C)(C)C(C)(C)C1188.4Semi standard non polar33892256
2-Methylpentanal,1TBDMS,isomer #1CCCC(C)=CO[Si](C)(C)C(C)(C)C1121.0Standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 2-Methylpentanal GC-MS (Non-derivatized) - 70eV, Positivesplash10-00bc-9000000000-4952ffd1d104a58110ed2017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 2-Methylpentanal 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-Methylpentanal 10V, Positive-QTOFsplash10-0udi-2900000000-79bc9ccdde1d197c791d2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Methylpentanal 20V, Positive-QTOFsplash10-0udi-9400000000-a0589b1955ed73623b772016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Methylpentanal 40V, Positive-QTOFsplash10-0006-9000000000-bf5787bd268701bc29db2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Methylpentanal 10V, Negative-QTOFsplash10-0002-9000000000-0edc594e6f0a2560791a2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Methylpentanal 20V, Negative-QTOFsplash10-0002-9000000000-3476c671528b9b836c622016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Methylpentanal 40V, Negative-QTOFsplash10-0a4l-9000000000-4b754cb139c3e65748252016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Methylpentanal 10V, Positive-QTOFsplash10-007o-9000000000-bbcbcf7c382e11218a4c2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Methylpentanal 20V, Positive-QTOFsplash10-0006-9000000000-3ed20d12f80b7fb6bf232021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Methylpentanal 40V, Positive-QTOFsplash10-000l-9000000000-621026886ad2028b57492021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Methylpentanal 10V, Negative-QTOFsplash10-0002-9000000000-658fe53778817eb823012021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Methylpentanal 20V, Negative-QTOFsplash10-00ls-9000000000-86aaf020f31f221854612021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Methylpentanal 40V, Negative-QTOFsplash10-0aou-9000000000-36a302508f0792a5e79d2021-09-22Wishart LabView Spectrum

NMR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted 1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 100 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, 1000 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, 200 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, 300 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, 400 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, 500 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, 600 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, 700 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, 800 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-30Wishart LabView Spectrum
Predicted 1D NMR13C 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]+)2023-02-04FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+)2023-02-04FELIX labView Spectrum
Biological Properties
Cellular Locations
  • Cytoplasm
  • Extracellular
Biospecimen Locations
  • Saliva
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
SalivaDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Not SpecifiedNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB008201
KNApSAcK IDNot Available
Chemspider ID28985
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound31245
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. Behr A, Reyer S, Tenhumberg N: Selective hydroformylation-hydrogenation tandem reaction of isoprene to 3-methylpentanal. Dalton Trans. 2011 Nov 28;40(44):11742-7. doi: 10.1039/c1dt11292a. Epub 2011 Sep 29. [PubMed:21960209 ]
  2. Firdous S, Banert K, Auer AA: Viability of 4,5-dihydro-1,2,3,4-oxatriazoles reinvestigated. Chemistry. 2011 May 9;17(20):5539-43. doi: 10.1002/chem.201100231. Epub 2011 Apr 19. [PubMed:21506186 ]
  3. Matsuura K, Deyashiki Y, Bunai Y, Ohya I, Hara A: Aldose reductase is a major reductase for isocaproaldehyde, a product of side-chain cleavage of cholesterol, in human and animal adrenal glands. Arch Biochem Biophys. 1996 Apr 15;328(2):265-71. [PubMed:8645003 ]
  4. Vermeulen C, Collin S: Synthesis and sensorial properties of mercaptoaldehydes. J Agric Food Chem. 2002 Sep 25;50(20):5654-9. [PubMed:12236693 ]
  5. Widder S, Sabater Luntzel C, Dittner T, Pickenhagen W: 3-Mercapto-2-methylpentan-1-ol, a new powerful aroma compound. J Agric Food Chem. 2000 Feb;48(2):418-23. [PubMed:10691650 ]
  6. Martin HJ, Maser E: Role of human aldo-keto-reductase AKR1B10 in the protection against toxic aldehydes. Chem Biol Interact. 2009 Mar 16;178(1-3):145-50. doi: 10.1016/j.cbi.2008.10.021. Epub 2008 Nov 1. [PubMed:19013440 ]
  7. Chen YH, McDonald FE: New chiral synthons for efficient introduction of bispropionates via stereospecific oxonia-cope rearrangements. J Am Chem Soc. 2006 Apr 12;128(14):4568-9. [PubMed:16594682 ]
  8. (). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .