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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 22:51:30 UTC
Update Date2021-09-26 23:17:44 UTC
HMDB IDHMDB0259897
Secondary Accession NumbersNone
Metabolite Identification
Common NameWithaferin A
DescriptionNSC-101088 belongs to the class of organic compounds known as withanolides and derivatives. These are c28 steroids structurally characterized by an ergostane skeleton usually functionalized at carbons 1, 22 and 26 to form a lactone ring. NSC-101088 is an extremely weak basic (essentially neutral) compound (based on its pKa). This compound has been identified in human blood as reported by (PMID: 31557052 ). Withaferin a is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Withaferin A is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources.
Structure
Thumb
SynonymsNot Available
Chemical FormulaC28H38O6
Average Molecular Weight470.606
Monoisotopic Molecular Weight470.266838944
IUPAC Name6-hydroxy-15-{1-[5-(hydroxymethyl)-4-methyl-6-oxo-3,6-dihydro-2H-pyran-2-yl]ethyl}-2,16-dimethyl-8-oxapentacyclo[9.7.0.0²,⁷.0⁷,⁹.0¹²,¹⁶]octadec-4-en-3-one
Traditional Name6-hydroxy-15-{1-[5-(hydroxymethyl)-4-methyl-6-oxo-2,3-dihydropyran-2-yl]ethyl}-2,16-dimethyl-8-oxapentacyclo[9.7.0.0²,⁷.0⁷,⁹.0¹²,¹⁶]octadec-4-en-3-one
CAS Registry NumberNot Available
SMILES
CC(C1CCC2C3CC4OC44C(O)C=CC(=O)C4(C)C3CCC12C)C1CC(C)=C(CO)C(=O)O1
InChI Identifier
InChI=1S/C28H38O6/c1-14-11-21(33-25(32)17(14)13-29)15(2)18-5-6-19-16-12-24-28(34-24)23(31)8-7-22(30)27(28,4)20(16)9-10-26(18,19)3/h7-8,15-16,18-21,23-24,29,31H,5-6,9-13H2,1-4H3
InChI KeyDBRXOUCRJQVYJQ-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as withanolides and derivatives. These are c28 steroids structurally characterized by an ergostane skeleton usually functionalized at carbons 1, 22 and 26 to form a lactone ring.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
Sub ClassSteroid lactones
Direct ParentWithanolides and derivatives
Alternative Parents
Substituents
  • Withanolide-skeleton
  • 5,6-epoxysteroid
  • Dihydropyranone
  • Oxepane
  • Cyclohexenone
  • Pyran
  • Alpha,beta-unsaturated carboxylic ester
  • Enoate ester
  • Carboxylic acid ester
  • Ketone
  • Lactone
  • Secondary alcohol
  • Oxacycle
  • Carboxylic acid derivative
  • Organoheterocyclic compound
  • Dialkyl ether
  • Oxirane
  • Ether
  • Monocarboxylic acid or derivatives
  • Carbonyl group
  • Hydrocarbon derivative
  • Organic oxide
  • Organic oxygen compound
  • Alcohol
  • Organooxygen compound
  • Primary alcohol
  • Aliphatic heteropolycyclic compound
Molecular FrameworkAliphatic heteropolycyclic compounds
External DescriptorsNot Available
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
logP2.64ALOGPS
logP3.58ChemAxon
logS-4.8ALOGPS
pKa (Strongest Acidic)13.43ChemAxon
pKa (Strongest Basic)-2.9ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area96.36 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity127.19 m³·mol⁻¹ChemAxon
Polarizability52.66 ųChemAxon
Number of Rings6ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
AllCCS[M+H]+214.8832859911
AllCCS[M+H-H2O]+212.97832859911
AllCCS[M+Na]+217.11832859911
AllCCS[M+NH4]+216.62232859911
AllCCS[M-H]-214.82232859911
AllCCS[M+Na-2H]-216.55432859911
AllCCS[M+HCOO]-218.61432859911
DeepCCS[M-2H]-238.5530932474
DeepCCS[M+Na]+213.77830932474

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
Withaferin ACC(C1CCC2C3CC4OC44C(O)C=CC(=O)C4(C)C3CCC12C)C1CC(C)=C(CO)C(=O)O13701.0Standard polar33892256
Withaferin ACC(C1CCC2C3CC4OC44C(O)C=CC(=O)C4(C)C3CCC12C)C1CC(C)=C(CO)C(=O)O13482.9Standard non polar33892256
Withaferin ACC(C1CCC2C3CC4OC44C(O)C=CC(=O)C4(C)C3CCC12C)C1CC(C)=C(CO)C(=O)O14081.9Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Withaferin A GC-MS (Non-derivatized) - 70eV, Positivesplash10-0zfr-6139800000-0b47079167c2a76bc5fc2021-09-23Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Withaferin A GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Withaferin A GC-MS (TMS_1_1) - 70eV, PositiveNot Available2021-11-05Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Withaferin A GC-MS (TMS_1_2) - 70eV, PositiveNot Available2021-11-05Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Withaferin A GC-MS (TMS_2_1) - 70eV, PositiveNot Available2021-11-05Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Withaferin A GC-MS (TBDMS_1_1) - 70eV, PositiveNot Available2021-11-05Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Withaferin A GC-MS (TBDMS_1_2) - 70eV, PositiveNot Available2021-11-05Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Withaferin A GC-MS (TBDMS_2_1) - 70eV, PositiveNot Available2021-11-05Wishart LabView Spectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Blood
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound580064
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. Barupal DK, Fiehn O: Generating the Blood Exposome Database Using a Comprehensive Text Mining and Database Fusion Approach. Environ Health Perspect. 2019 Sep;127(9):97008. doi: 10.1289/EHP4713. Epub 2019 Sep 26. [PubMed:31557052 ]