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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2012-09-12 00:11:23 UTC
Update Date2022-03-07 02:55:57 UTC
HMDB IDHMDB0038842
Secondary Accession Numbers
  • HMDB38842
Metabolite Identification
Common NameLongamide
DescriptionLongamide belongs to the class of organic compounds known as carboximidic acids. These are organic acids with the general formula RC(=N)-OH (R=H, organic group). Longamide has been detected, but not quantified in, herbs and spices. This could make longamide a potential biomarker for the consumption of these foods. Based on a literature review a significant number of articles have been published on Longamide.
Structure
Data?1563863267
Synonyms
ValueSource
Hexacosanoic acid isobutylamideHMDB
N-(2-Methylpropyl)hexacosanamide, 9ciHMDB
N-(2-Methylpropyl)hexacosanimidateGenerator
Chemical FormulaC30H61NO
Average Molecular Weight451.8114
Monoisotopic Molecular Weight451.475315579
IUPAC NameN-(2-methylpropyl)hexacosanamide
Traditional NameN-(2-methylpropyl)hexacosanamide
CAS Registry Number119736-87-7
SMILES
CCCCCCCCCCCCCCCCCCCCCCCCCC(=O)NCC(C)C
InChI Identifier
InChI=1S/C30H61NO/c1-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-24-25-26-27-30(32)31-28-29(2)3/h29H,4-28H2,1-3H3,(H,31,32)
InChI KeyYFTBALWTXJWGFU-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as carboximidic acids. These are organic acids with the general formula RC(=N)-OH (R=H, organic group).
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboximidic acids and derivatives
Sub ClassCarboximidic acids
Direct ParentCarboximidic acids
Alternative Parents
Substituents
  • Organic 1,3-dipolar compound
  • Propargyl-type 1,3-dipolar organic compound
  • Carboximidic acid
  • Organic nitrogen compound
  • Organic oxygen compound
  • Organopnictogen compound
  • Hydrocarbon derivative
  • Organooxygen compound
  • Organonitrogen compound
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External DescriptorsNot Available
Ontology
Not AvailableNot Available
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting Point72 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility1.7e-05 g/LALOGPS
logP10.06ALOGPS
logP11.36ChemAxon
logS-7.4ALOGPS
pKa (Strongest Acidic)16.44ChemAxon
pKa (Strongest Basic)0.36ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area29.1 ŲChemAxon
Rotatable Bond Count26ChemAxon
Refractivity143.56 m³·mol⁻¹ChemAxon
Polarizability63.95 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityNoChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+221.82631661259
DarkChem[M-H]-223.23731661259
DeepCCS[M+H]+220.09530932474
DeepCCS[M-H]-217.54530932474
DeepCCS[M-2H]-250.74830932474
DeepCCS[M+Na]+226.43830932474
AllCCS[M+H]+236.132859911
AllCCS[M+H-H2O]+234.432859911
AllCCS[M+NH4]+237.632859911
AllCCS[M+Na]+238.032859911
AllCCS[M-H]-219.232859911
AllCCS[M+Na-2H]-222.932859911
AllCCS[M+HCOO]-227.132859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
LongamideCCCCCCCCCCCCCCCCCCCCCCCCCC(=O)NCC(C)C3542.1Standard polar33892256
LongamideCCCCCCCCCCCCCCCCCCCCCCCCCC(=O)NCC(C)C3331.1Standard non polar33892256
LongamideCCCCCCCCCCCCCCCCCCCCCCCCCC(=O)NCC(C)C3417.2Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Longamide,1TMS,isomer #1CCCCCCCCCCCCCCCCCCCCCCCCCC(=O)N(CC(C)C)[Si](C)(C)C3500.8Semi standard non polar33892256
Longamide,1TMS,isomer #1CCCCCCCCCCCCCCCCCCCCCCCCCC(=O)N(CC(C)C)[Si](C)(C)C3379.7Standard non polar33892256
Longamide,1TBDMS,isomer #1CCCCCCCCCCCCCCCCCCCCCCCCCC(=O)N(CC(C)C)[Si](C)(C)C(C)(C)C3704.2Semi standard non polar33892256
Longamide,1TBDMS,isomer #1CCCCCCCCCCCCCCCCCCCCCCCCCC(=O)N(CC(C)C)[Si](C)(C)C(C)(C)C3522.8Standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Longamide GC-MS (Non-derivatized) - 70eV, Positivesplash10-0a4i-8933300000-23a6ced2482ee45e55ca2017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Longamide GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Longamide 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 - Longamide 10V, Positive-QTOFsplash10-00di-9000300000-538dc2716dc4020e507b2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Longamide 20V, Positive-QTOFsplash10-00di-9001000000-f7c4d7d3d80c751040812016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Longamide 40V, Positive-QTOFsplash10-0ab9-9001000000-8965a08bfd92eb5667132016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Longamide 10V, Negative-QTOFsplash10-0udi-0002900000-59e46b66f024fcc0af8b2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Longamide 20V, Negative-QTOFsplash10-0ukc-7108900000-c3fb3c5e382ae8528b222016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Longamide 40V, Negative-QTOFsplash10-0006-9003000000-9454040402775691eacf2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Longamide 10V, Positive-QTOFsplash10-0udi-5001900000-6c494688caf991e944e02021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Longamide 20V, Positive-QTOFsplash10-0ab9-9001100000-9394718d56a4bf694a872021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Longamide 40V, Positive-QTOFsplash10-0a4i-9000000000-fa8ecaa763d8a48b77a12021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Longamide 10V, Negative-QTOFsplash10-0udi-0001900000-7ed8d331346e17e906432021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Longamide 20V, Negative-QTOFsplash10-0udi-1001900000-4a2cc5e2da4d5730741c2021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Longamide 40V, Negative-QTOFsplash10-054o-9103100000-22f8c3e19283dc81a0eb2021-09-23Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • 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 IDFDB018277
KNApSAcK IDC00056604
Chemspider ID30777296
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound14162529
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. (). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .