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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 14:40:42 UTC
Update Date2021-09-26 23:09:39 UTC
HMDB IDHMDB0255109
Secondary Accession NumbersNone
Metabolite Identification
Common NameN-Demethyl Mifepristone
DescriptionN-Demethyl Mifepristone belongs to the class of organic compounds known as oxosteroids. These are steroid derivatives carrying a C=O group attached to steroid skeleton. Based on a literature review a significant number of articles have been published on N-Demethyl Mifepristone. This compound has been identified in human blood as reported by (PMID: 31557052 ). N-demethyl mifepristone is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically N-Demethyl Mifepristone 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 FormulaC28H33NO2
Average Molecular Weight415.577
Monoisotopic Molecular Weight415.251129307
IUPAC Name14-hydroxy-15-methyl-17-[4-(methylamino)phenyl]-14-(prop-1-yn-1-yl)tetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadeca-1,6-dien-5-one
Traditional Name14-hydroxy-15-methyl-17-[4-(methylamino)phenyl]-14-(prop-1-yn-1-yl)tetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadeca-1,6-dien-5-one
CAS Registry NumberNot Available
SMILES
CNC1=CC=C(C=C1)C1CC2(C)C(CCC2(O)C#CC)C2CCC3=CC(=O)CCC3=C12
InChI Identifier
InChI=1S/C28H33NO2/c1-4-14-28(31)15-13-25-23-11-7-19-16-21(30)10-12-22(19)26(23)24(17-27(25,28)2)18-5-8-20(29-3)9-6-18/h5-6,8-9,16,23-25,29,31H,7,10-13,15,17H2,1-3H3
InChI KeyIBLXOBHABOVXDY-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as oxosteroids. These are steroid derivatives carrying a C=O group attached to steroid skeleton.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
Sub ClassOxosteroids
Direct ParentOxosteroids
Alternative Parents
Substituents
  • 3-oxosteroid
  • Hydroxysteroid
  • Oxosteroid
  • 17-hydroxysteroid
  • Phenylalkylamine
  • Aniline or substituted anilines
  • Cyclohexenone
  • Secondary aliphatic/aromatic amine
  • Monocyclic benzene moiety
  • Benzenoid
  • Ynone
  • Cyclic alcohol
  • Tertiary alcohol
  • Ketone
  • Cyclic ketone
  • Secondary amine
  • Hydrocarbon derivative
  • Organic oxide
  • Organooxygen compound
  • Organonitrogen compound
  • Organopnictogen compound
  • Organic nitrogen compound
  • Carbonyl group
  • Organic oxygen compound
  • Amine
  • Alcohol
  • Aromatic homopolycyclic compound
Molecular FrameworkAromatic homopolycyclic 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
logP5.21ALOGPS
logP4.5ChemAxon
logS-5.2ALOGPS
pKa (Strongest Acidic)12.87ChemAxon
pKa (Strongest Basic)4.64ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area49.33 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity128.35 m³·mol⁻¹ChemAxon
Polarizability48.93 ųChemAxon
Number of Rings5ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M-2H]-229.35730932474
DeepCCS[M+Na]+204.58530932474
AllCCS[M+H]+205.232859911
AllCCS[M+H-H2O]+202.932859911
AllCCS[M+NH4]+207.432859911
AllCCS[M+Na]+208.032859911
AllCCS[M-H]-208.832859911
AllCCS[M+Na-2H]-209.432859911
AllCCS[M+HCOO]-210.232859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
N-Demethyl MifepristoneCNC1=CC=C(C=C1)C1CC2(C)C(CCC2(O)C#CC)C2CCC3=CC(=O)CCC3=C125845.9Standard polar33892256
N-Demethyl MifepristoneCNC1=CC=C(C=C1)C1CC2(C)C(CCC2(O)C#CC)C2CCC3=CC(=O)CCC3=C123951.8Standard non polar33892256
N-Demethyl MifepristoneCNC1=CC=C(C=C1)C1CC2(C)C(CCC2(O)C#CC)C2CCC3=CC(=O)CCC3=C124112.7Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
N-Demethyl Mifepristone,2TMS,isomer #1CC#CC1(O[Si](C)(C)C)CCC2C3CCC4=CC(O[Si](C)(C)C)=CCC4=C3C(C3=CC=C(NC)C=C3)CC21C3876.0Semi standard non polar33892256
N-Demethyl Mifepristone,2TMS,isomer #1CC#CC1(O[Si](C)(C)C)CCC2C3CCC4=CC(O[Si](C)(C)C)=CCC4=C3C(C3=CC=C(NC)C=C3)CC21C3908.7Standard non polar33892256
N-Demethyl Mifepristone,2TMS,isomer #1CC#CC1(O[Si](C)(C)C)CCC2C3CCC4=CC(O[Si](C)(C)C)=CCC4=C3C(C3=CC=C(NC)C=C3)CC21C4196.4Standard polar33892256
N-Demethyl Mifepristone,2TMS,isomer #2CC#CC1(O[Si](C)(C)C)CCC2C3CCC4=CC(=O)CCC4=C3C(C3=CC=C(N(C)[Si](C)(C)C)C=C3)CC21C3990.0Semi standard non polar33892256
N-Demethyl Mifepristone,2TMS,isomer #2CC#CC1(O[Si](C)(C)C)CCC2C3CCC4=CC(=O)CCC4=C3C(C3=CC=C(N(C)[Si](C)(C)C)C=C3)CC21C3959.6Standard non polar33892256
N-Demethyl Mifepristone,2TMS,isomer #2CC#CC1(O[Si](C)(C)C)CCC2C3CCC4=CC(=O)CCC4=C3C(C3=CC=C(N(C)[Si](C)(C)C)C=C3)CC21C4056.6Standard polar33892256
N-Demethyl Mifepristone,2TMS,isomer #3CC#CC1(O)CCC2C3CCC4=CC(O[Si](C)(C)C)=CCC4=C3C(C3=CC=C(N(C)[Si](C)(C)C)C=C3)CC21C3921.0Semi standard non polar33892256
N-Demethyl Mifepristone,2TMS,isomer #3CC#CC1(O)CCC2C3CCC4=CC(O[Si](C)(C)C)=CCC4=C3C(C3=CC=C(N(C)[Si](C)(C)C)C=C3)CC21C4002.5Standard non polar33892256
N-Demethyl Mifepristone,2TMS,isomer #3CC#CC1(O)CCC2C3CCC4=CC(O[Si](C)(C)C)=CCC4=C3C(C3=CC=C(N(C)[Si](C)(C)C)C=C3)CC21C4176.2Standard polar33892256
N-Demethyl Mifepristone,3TMS,isomer #1CC#CC1(O[Si](C)(C)C)CCC2C3CCC4=CC(O[Si](C)(C)C)=CCC4=C3C(C3=CC=C(N(C)[Si](C)(C)C)C=C3)CC21C3960.4Semi standard non polar33892256
N-Demethyl Mifepristone,3TMS,isomer #1CC#CC1(O[Si](C)(C)C)CCC2C3CCC4=CC(O[Si](C)(C)C)=CCC4=C3C(C3=CC=C(N(C)[Si](C)(C)C)C=C3)CC21C4011.0Standard non polar33892256
N-Demethyl Mifepristone,3TMS,isomer #1CC#CC1(O[Si](C)(C)C)CCC2C3CCC4=CC(O[Si](C)(C)C)=CCC4=C3C(C3=CC=C(N(C)[Si](C)(C)C)C=C3)CC21C4031.0Standard polar33892256
N-Demethyl Mifepristone,2TBDMS,isomer #1CC#CC1(O[Si](C)(C)C(C)(C)C)CCC2C3CCC4=CC(O[Si](C)(C)C(C)(C)C)=CCC4=C3C(C3=CC=C(NC)C=C3)CC21C4366.8Semi standard non polar33892256
N-Demethyl Mifepristone,2TBDMS,isomer #1CC#CC1(O[Si](C)(C)C(C)(C)C)CCC2C3CCC4=CC(O[Si](C)(C)C(C)(C)C)=CCC4=C3C(C3=CC=C(NC)C=C3)CC21C4418.5Standard non polar33892256
N-Demethyl Mifepristone,2TBDMS,isomer #1CC#CC1(O[Si](C)(C)C(C)(C)C)CCC2C3CCC4=CC(O[Si](C)(C)C(C)(C)C)=CCC4=C3C(C3=CC=C(NC)C=C3)CC21C4353.2Standard polar33892256
N-Demethyl Mifepristone,2TBDMS,isomer #2CC#CC1(O[Si](C)(C)C(C)(C)C)CCC2C3CCC4=CC(=O)CCC4=C3C(C3=CC=C(N(C)[Si](C)(C)C(C)(C)C)C=C3)CC21C4440.7Semi standard non polar33892256
N-Demethyl Mifepristone,2TBDMS,isomer #2CC#CC1(O[Si](C)(C)C(C)(C)C)CCC2C3CCC4=CC(=O)CCC4=C3C(C3=CC=C(N(C)[Si](C)(C)C(C)(C)C)C=C3)CC21C4493.2Standard non polar33892256
N-Demethyl Mifepristone,2TBDMS,isomer #2CC#CC1(O[Si](C)(C)C(C)(C)C)CCC2C3CCC4=CC(=O)CCC4=C3C(C3=CC=C(N(C)[Si](C)(C)C(C)(C)C)C=C3)CC21C4246.1Standard polar33892256
N-Demethyl Mifepristone,2TBDMS,isomer #3CC#CC1(O)CCC2C3CCC4=CC(O[Si](C)(C)C(C)(C)C)=CCC4=C3C(C3=CC=C(N(C)[Si](C)(C)C(C)(C)C)C=C3)CC21C4367.2Semi standard non polar33892256
N-Demethyl Mifepristone,2TBDMS,isomer #3CC#CC1(O)CCC2C3CCC4=CC(O[Si](C)(C)C(C)(C)C)=CCC4=C3C(C3=CC=C(N(C)[Si](C)(C)C(C)(C)C)C=C3)CC21C4512.1Standard non polar33892256
N-Demethyl Mifepristone,2TBDMS,isomer #3CC#CC1(O)CCC2C3CCC4=CC(O[Si](C)(C)C(C)(C)C)=CCC4=C3C(C3=CC=C(N(C)[Si](C)(C)C(C)(C)C)C=C3)CC21C4373.0Standard polar33892256
N-Demethyl Mifepristone,3TBDMS,isomer #1CC#CC1(O[Si](C)(C)C(C)(C)C)CCC2C3CCC4=CC(O[Si](C)(C)C(C)(C)C)=CCC4=C3C(C3=CC=C(N(C)[Si](C)(C)C(C)(C)C)C=C3)CC21C4583.6Semi standard non polar33892256
N-Demethyl Mifepristone,3TBDMS,isomer #1CC#CC1(O[Si](C)(C)C(C)(C)C)CCC2C3CCC4=CC(O[Si](C)(C)C(C)(C)C)=CCC4=C3C(C3=CC=C(N(C)[Si](C)(C)C(C)(C)C)C=C3)CC21C4718.6Standard non polar33892256
N-Demethyl Mifepristone,3TBDMS,isomer #1CC#CC1(O[Si](C)(C)C(C)(C)C)CCC2C3CCC4=CC(O[Si](C)(C)C(C)(C)C)=CCC4=C3C(C3=CC=C(N(C)[Si](C)(C)C(C)(C)C)C=C3)CC21C4230.2Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - N-Demethyl Mifepristone GC-MS (Non-derivatized) - 70eV, Positivesplash10-0f9j-0359100000-397ca3f50494c7366bb92021-09-23Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Demethyl Mifepristone GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Demethyl Mifepristone GC-MS (TMS_1_1) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Demethyl Mifepristone GC-MS (TMS_1_2) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Demethyl Mifepristone GC-MS (TMS_1_3) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Demethyl Mifepristone GC-MS (TBDMS_1_1) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Demethyl Mifepristone GC-MS (TBDMS_1_2) - 70eV, PositiveNot Available2021-11-04Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - N-Demethyl Mifepristone GC-MS (TBDMS_1_3) - 70eV, PositiveNot Available2021-11-04Wishart 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 ID10619403
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound13605509
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 ]