Hmdb loader
Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2012-09-11 17:40:46 UTC
Update Date2022-03-07 02:52:48 UTC
HMDB IDHMDB0031068
Secondary Accession Numbers
  • HMDB31068
Metabolite Identification
Common NameIsopalmitic acid
DescriptionIsopalmitic acid, also known as isopalmitate, belongs to the class of organic compounds known as long-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 13 and 21 carbon atoms. Based on a literature review a significant number of articles have been published on Isopalmitic acid.
Structure
Data?1563862077
Synonyms
ValueSource
IsopalmitateGenerator
3,4-Dihydroxyphenyl thiocyanateHMDB
4-ThiocyanatopyrocatecholHMDB
Thiocyanic acid, 3,4-dihydroxyphenyl esterHMDB
Iso-C16:0PhytoBank
Isohexadecanoic acidPhytoBank
Isopalmitic acidPhytoBank
FA(i-16:0)PhytoBank
Chemical FormulaC16H32O2
Average Molecular Weight256.4241
Monoisotopic Molecular Weight256.240230268
IUPAC Name14-methylpentadecanoic acid
Traditional Nameisopalmitic acid
CAS Registry Number4669-02-7
SMILES
CC(C)CCCCCCCCCCCCC(O)=O
InChI Identifier
InChI=1S/C16H32O2/c1-15(2)13-11-9-7-5-3-4-6-8-10-12-14-16(17)18/h15H,3-14H2,1-2H3,(H,17,18)
InChI KeyZONJATNKKGGVSU-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as long-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 13 and 21 carbon atoms.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassFatty Acyls
Sub ClassFatty acids and conjugates
Direct ParentLong-chain fatty acids
Alternative Parents
Substituents
  • Long-chain fatty acid
  • Methyl-branched fatty acid
  • 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
Biological locationRoute of exposureSource
Process
Role
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting Point61.8 - 62.4 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility0.00026 g/LALOGPS
logP7.04ALOGPS
logP6.1ChemAxon
logS-6ALOGPS
pKa (Strongest Acidic)4.95ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area37.3 ŲChemAxon
Rotatable Bond Count13ChemAxon
Refractivity77.03 m³·mol⁻¹ChemAxon
Polarizability34.08 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]+161.38431661259
DarkChem[M-H]-165.59731661259
DeepCCS[M+H]+164.56930932474
DeepCCS[M-H]-160.54930932474
DeepCCS[M-2H]-198.08630932474
DeepCCS[M+Na]+173.77830932474
AllCCS[M+H]+172.632859911
AllCCS[M+H-H2O]+169.532859911
AllCCS[M+NH4]+175.532859911
AllCCS[M+Na]+176.432859911
AllCCS[M-H]-172.432859911
AllCCS[M+Na-2H]-173.832859911
AllCCS[M+HCOO]-175.432859911

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, 2022.10.41 minutes32390414
Predicted by Siyang on May 30, 202222.9023 minutes33406817
Predicted by Siyang using ReTip algorithm on June 8, 20222.26 minutes32390414
AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid35.9 seconds40023050
Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid2960.8 seconds40023050
Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid688.6 seconds40023050
Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid254.6 seconds40023050
Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid373.4 seconds40023050
RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid533.5 seconds40023050
Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid994.0 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 Acid948.5 seconds40023050
HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate)98.9 seconds40023050
UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid2050.1 seconds40023050
BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid600.5 seconds40023050
UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid1899.4 seconds40023050
SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid756.4 seconds40023050
RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid503.0 seconds40023050
MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate705.6 seconds40023050
KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA578.0 seconds40023050
Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water8.1 seconds40023050

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
Isopalmitic acidCC(C)CCCCCCCCCCCCC(O)=O2847.1Standard polar33892256
Isopalmitic acidCC(C)CCCCCCCCCCCCC(O)=O1863.9Standard non polar33892256
Isopalmitic acidCC(C)CCCCCCCCCCCCC(O)=O1945.6Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Isopalmitic acid,1TMS,isomer #1CC(C)CCCCCCCCCCCCC(=O)O[Si](C)(C)C2009.4Semi standard non polar33892256
Isopalmitic acid,1TBDMS,isomer #1CC(C)CCCCCCCCCCCCC(=O)O[Si](C)(C)C(C)(C)C2258.4Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Isopalmitic acid GC-MS (Non-derivatized) - 70eV, Positivesplash10-0006-9510000000-0d06bf46220ef14e0bcf2017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Isopalmitic acid GC-MS (1 TMS) - 70eV, Positivesplash10-01y6-9330000000-5b3e93f280ae71ac62552017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Isopalmitic acid GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental LC-MS/MSLC-MS/MS Spectrum - Isopalmitic acid 10V, Negative-QTOFsplash10-0a4i-0090000000-ee7714d6cd5a622bb73c2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isopalmitic acid 20V, Negative-QTOFsplash10-0a4i-0190000000-d5a6c38eea9fffffe17d2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Isopalmitic acid 40V, Negative-QTOFsplash10-0002-5940000000-33bf33d9792bf8201f7e2021-09-20HMDB team, MONAView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isopalmitic acid 10V, Positive-QTOFsplash10-0a4r-0190000000-33d807f3cab7056ed9252016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isopalmitic acid 20V, Positive-QTOFsplash10-0bti-6980000000-0a8e71b9f000705649362016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isopalmitic acid 40V, Positive-QTOFsplash10-0a4i-9500000000-348a5914e488834ee8962016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isopalmitic acid 10V, Negative-QTOFsplash10-0a4i-0090000000-64b91bef636787fb8a822016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isopalmitic acid 20V, Negative-QTOFsplash10-0a4i-1090000000-53943f08df2971d688662016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isopalmitic acid 40V, Negative-QTOFsplash10-0a4i-9320000000-a46de522dbb50d5bff3d2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isopalmitic acid 10V, Negative-QTOFsplash10-0a4i-0090000000-9437efc32cf6544653e12021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isopalmitic acid 20V, Negative-QTOFsplash10-0a4r-0090000000-9a2057664dde47a0e7dd2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isopalmitic acid 40V, Negative-QTOFsplash10-0006-9410000000-5b9357da386b83b3dc982021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isopalmitic acid 10V, Positive-QTOFsplash10-0a4r-6590000000-89791213cc212a7ebbcf2021-09-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isopalmitic acid 20V, Positive-QTOFsplash10-0a4r-9200000000-58a774bcd6fa17984c912021-09-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isopalmitic acid 40V, Positive-QTOFsplash10-0a4i-9000000000-587bbbd8bcbc7e16ff2a2021-09-25Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Extracellular
  • Membrane
Biospecimen Locations
  • Feces
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Normal
details
Abnormal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)BothColorectal Cancer details
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)BothColorectal Cancer details
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Colorectal cancer
details
Associated Disorders and Diseases
Disease References
Colorectal cancer
  1. Sinha R, Ahn J, Sampson JN, Shi J, Yu G, Xiong X, Hayes RB, Goedert JJ: Fecal Microbiota, Fecal Metabolome, and Colorectal Cancer Interrelations. PLoS One. 2016 Mar 25;11(3):e0152126. doi: 10.1371/journal.pone.0152126. eCollection 2016. [PubMed:27015276 ]
  2. Brown DG, Rao S, Weir TL, O'Malia J, Bazan M, Brown RJ, Ryan EP: Metabolomics and metabolic pathway networks from human colorectal cancers, adjacent mucosa, and stool. Cancer Metab. 2016 Jun 6;4:11. doi: 10.1186/s40170-016-0151-y. eCollection 2016. [PubMed:27275383 ]
  3. Goedert JJ, Sampson JN, Moore SC, Xiao Q, Xiong X, Hayes RB, Ahn J, Shi J, Sinha R: Fecal metabolomics: assay performance and association with colorectal cancer. Carcinogenesis. 2014 Sep;35(9):2089-96. doi: 10.1093/carcin/bgu131. Epub 2014 Jul 18. [PubMed:25037050 ]
Associated OMIM IDs
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB003070
KNApSAcK IDC00052561
Chemspider ID33331
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound36247
PDB IDNot Available
ChEBI ID84890
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. 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.