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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2006-05-22 14:17:50 UTC
Update Date2022-03-07 02:49:15 UTC
HMDB IDHMDB0002361
Secondary Accession Numbers
  • HMDB02361
Metabolite Identification
Common NamePentacosanoic acid
DescriptionPentacosanoic acid, also known as pentacosanoate or hyenate, is a straight-chain saturated fatty acid and a very long-chain fatty acid. It is a conjugate acid of a pentacosanoate. Pentacosanoic acid belongs to the class of organic compounds known as very long-chain fatty acids. These are fatty acids with an aliphatic tail that contains at least 22 carbon atoms. Pentacosanoic acid is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. Pentacosanoic acid is a potentially toxic compound.
Structure
Data?1582752245
Synonyms
ValueSource
PentacosanoateGenerator
HyenateHMDB, Generator
Hyenic acidHMDB
N-PentacosanoateHMDB
N-Pentacosanoic acidHMDB
Chemical FormulaC25H50O2
Average Molecular Weight382.6633
Monoisotopic Molecular Weight382.381080844
IUPAC Namepentacosanoic acid
Traditional Namepentacosanoic acid
CAS Registry Number506-38-7
SMILES
CCCCCCCCCCCCCCCCCCCCCCCCC(O)=O
InChI Identifier
InChI=1S/C25H50O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-24-25(26)27/h2-24H2,1H3,(H,26,27)
InChI KeyMWMPEAHGUXCSMY-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as very long-chain fatty acids. These are fatty acids with an aliphatic tail that contains at least 22 carbon atoms.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassFatty Acyls
Sub ClassFatty acids and conjugates
Direct ParentVery long-chain fatty acids
Alternative Parents
Substituents
  • Very long-chain fatty acid
  • Straight chain 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
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water Solubility1.9e-06 mg/L @ 25 °C (est)The Good Scents Company Information System
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility2.0e-05 g/LALOGPS
logP9.73ALOGPS
logP10.26ChemAxon
logS-7.3ALOGPS
pKa (Strongest Acidic)4.95ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area37.3 ŲChemAxon
Rotatable Bond Count23ChemAxon
Refractivity118.49 m³·mol⁻¹ChemAxon
Polarizability53.74 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]+203.57631661259
DarkChem[M-H]-204.34531661259
DeepCCS[M+H]+196.0130932474
DeepCCS[M-H]-193.28730932474
DeepCCS[M-2H]-228.45130932474
DeepCCS[M+Na]+204.74130932474
AllCCS[M+H]+217.332859911
AllCCS[M+H-H2O]+215.132859911
AllCCS[M+NH4]+219.332859911
AllCCS[M+Na]+219.832859911
AllCCS[M-H]-201.932859911
AllCCS[M+Na-2H]-204.332859911
AllCCS[M+HCOO]-207.032859911

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, 2022.10.59 minutes32390414
Predicted by Siyang on May 30, 202233.3845 minutes33406817
Predicted by Siyang using ReTip algorithm on June 8, 20222.22 minutes32390414
AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid52.4 seconds40023050
Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid4081.9 seconds40023050
Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid982.3 seconds40023050
Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid364.9 seconds40023050
Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid503.5 seconds40023050
RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid773.2 seconds40023050
Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid1406.7 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 Acid1367.3 seconds40023050
HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate)114.4 seconds40023050
UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid3107.3 seconds40023050
BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid817.4 seconds40023050
UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid2593.1 seconds40023050
SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid1184.1 seconds40023050
RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid704.4 seconds40023050
MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate1048.5 seconds40023050
KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA800.9 seconds40023050
Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water8.5 seconds40023050

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
Pentacosanoic acidCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O4024.1Standard polar33892256
Pentacosanoic acidCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O2803.1Standard non polar33892256
Pentacosanoic acidCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O2865.0Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Pentacosanoic acid,1TMS,isomer #1CCCCCCCCCCCCCCCCCCCCCCCCC(=O)O[Si](C)(C)C2935.3Semi standard non polar33892256
Pentacosanoic acid,1TBDMS,isomer #1CCCCCCCCCCCCCCCCCCCCCCCCC(=O)O[Si](C)(C)C(C)(C)C3193.9Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental GC-MSGC-MS Spectrum - Pentacosanoic acid GC-MS (1 TMS)splash10-0159-2900000000-6665b7d9eabf93c4a9452014-06-16HMDB team, MONA, MassBankView Spectrum
Experimental GC-MSGC-MS Spectrum - Pentacosanoic acid GC-MS (Non-derivatized)splash10-0159-2900000000-6665b7d9eabf93c4a9452017-09-12HMDB team, MONA, MassBankView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Pentacosanoic acid GC-MS (Non-derivatized) - 70eV, Positivesplash10-052f-8890000000-725d043b2157b24da3a42017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Pentacosanoic acid GC-MS (1 TMS) - 70eV, Positivesplash10-0079-9550000000-96d63a4885fdd05441652017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Pentacosanoic 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 - Pentacosanoic acid Quattro_QQQ 10V, Positive-QTOF (Annotated)splash10-001i-0009000000-800d2e5558f9293777f22012-07-25HMDB team, MONAView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Pentacosanoic acid 10V, Positive-QTOFsplash10-014i-0009000000-f070114e9b2a4bbf66792017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Pentacosanoic acid 20V, Positive-QTOFsplash10-00yr-3339000000-b176744191f8a42e707b2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Pentacosanoic acid 40V, Positive-QTOFsplash10-006x-5972000000-b415c1ccaa8f4d57a5292017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Pentacosanoic acid 10V, Negative-QTOFsplash10-001i-0009000000-8dfc981003ca4996a4892017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Pentacosanoic acid 20V, Negative-QTOFsplash10-01qi-0009000000-ef611c789ccafd81219e2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Pentacosanoic acid 40V, Negative-QTOFsplash10-0a4l-9113000000-8f4bec5516a7678910612017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Pentacosanoic acid 10V, Negative-QTOFsplash10-001i-0009000000-df18d224d3bce420cd792021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Pentacosanoic acid 20V, Negative-QTOFsplash10-01q9-1009000000-397f2820fbfdd63fd68f2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Pentacosanoic acid 40V, Negative-QTOFsplash10-0006-9012000000-d56100016e8ed9e82fc12021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Pentacosanoic acid 10V, Positive-QTOFsplash10-00lr-2009000000-8d7bf9f66523c92f4b8e2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Pentacosanoic acid 20V, Positive-QTOFsplash10-066r-8049000000-b0deb3a758569827538a2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Pentacosanoic acid 40V, Positive-QTOFsplash10-0a4l-9000000000-c5daab40fd34bd3117842021-09-22Wishart LabView Spectrum

NMR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Experimental 2D NMR[1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, CDCl3, experimental)2012-12-05Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Extracellular
  • Membrane (predicted from logP)
Biospecimen Locations
  • Feces
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
FecesDetected but not QuantifiedNot QuantifiedInfant (0-1 year old)Both
Normal
details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB003081
KNApSAcK IDC00057417
Chemspider ID10036
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkPentacosylic acid
METLIN ID4209
PubChem Compound10468
PDB IDNot Available
ChEBI ID39420
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDrw1824601
References
Synthesis ReferenceCason, James; Wolfhagen, Helen J.; Tarpey, Winifred; Adams, Raylene E. Branched chain fatty acids. X. Synthesis of acids with branching methyl groups near the carboxyl. Journal of Organic Chemistry (1949), 14 147-54.
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. Reinecke CJ, Knoll DP, Pretorius PJ, Steyn HS, Simpson RH: The correlation between biochemical and histopathological findings in adrenoleukodystrophy. J Neurol Sci. 1985 Aug;70(1):21-38. [PubMed:4045498 ]
  2. Tao RV, Lee BC, Hsieh TC, Laine RA: Occurrence of an unusual amount of an odd-numbered fatty acid in glycosphingolipids from human cataracts. Curr Eye Res. 1987 Dec;6(12):1361-7. [PubMed:3427985 ]