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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 13:44:01 UTC
Update Date2021-09-26 23:08:24 UTC
HMDB IDHMDB0254423
Secondary Accession NumbersNone
Metabolite Identification
Common NameMelengestrol acetate
DescriptionMelengestrol acetate belongs to the class of organic compounds known as gluco/mineralocorticoids, progestogins and derivatives. These are steroids with a structure based on a hydroxylated prostane moiety. Based on a literature review a significant number of articles have been published on Melengestrol acetate. This compound has been identified in human blood as reported by (PMID: 31557052 ). Melengestrol acetate is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Melengestrol acetate 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
Synonyms
ValueSource
Melengestrol acetic acidGenerator
Chemical FormulaC25H32O4
Average Molecular Weight396.527
Monoisotopic Molecular Weight396.23005951
IUPAC Name14-acetyl-2,8,15-trimethyl-13-methylidene-5-oxotetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadeca-6,8-dien-14-yl acetate
Traditional Name14-acetyl-2,8,15-trimethyl-13-methylidene-5-oxotetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadeca-6,8-dien-14-yl acetate
CAS Registry NumberNot Available
SMILES
CC(=O)OC1(C(C)=O)C(=C)CC2C3C=C(C)C4=CC(=O)CCC4(C)C3CCC12C
InChI Identifier
InChI=1S/C25H32O4/c1-14-11-19-20(23(5)9-7-18(28)13-21(14)23)8-10-24(6)22(19)12-15(2)25(24,16(3)26)29-17(4)27/h11,13,19-20,22H,2,7-10,12H2,1,3-6H3
InChI KeyUDKABVSQKJNZBH-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as gluco/mineralocorticoids, progestogins and derivatives. These are steroids with a structure based on a hydroxylated prostane moiety.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
Sub ClassPregnane steroids
Direct ParentGluco/mineralocorticoids, progestogins and derivatives
Alternative Parents
Substituents
  • Progestogin-skeleton
  • 20-oxosteroid
  • Steroid ester
  • 3-oxosteroid
  • Oxosteroid
  • Cyclohexenone
  • Alpha-acyloxy ketone
  • Ketone
  • Carboxylic acid ester
  • Cyclic ketone
  • Monocarboxylic acid or derivatives
  • Carboxylic acid derivative
  • Hydrocarbon derivative
  • Organic oxygen compound
  • Organooxygen compound
  • Organic oxide
  • Carbonyl group
  • Aliphatic homopolycyclic compound
Molecular FrameworkAliphatic 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
logP3.87ALOGPS
logP3.82ChemAxon
logS-5.4ALOGPS
pKa (Strongest Acidic)17.54ChemAxon
pKa (Strongest Basic)-4.9ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area60.44 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity112.83 m³·mol⁻¹ChemAxon
Polarizability44.89 ųChemAxon
Number of Rings4ChemAxon
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]-223.4430932474
DeepCCS[M+Na]+198.51430932474
AllCCS[M+H]+196.432859911
AllCCS[M+H-H2O]+194.032859911
AllCCS[M+NH4]+198.632859911
AllCCS[M+Na]+199.332859911
AllCCS[M-H]-203.132859911
AllCCS[M+Na-2H]-203.932859911
AllCCS[M+HCOO]-204.932859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
Melengestrol acetateCC(=O)OC1(C(C)=O)C(=C)CC2C3C=C(C)C4=CC(=O)CCC4(C)C3CCC12C3994.8Standard polar33892256
Melengestrol acetateCC(=O)OC1(C(C)=O)C(=C)CC2C3C=C(C)C4=CC(=O)CCC4(C)C3CCC12C2838.5Standard non polar33892256
Melengestrol acetateCC(=O)OC1(C(C)=O)C(=C)CC2C3C=C(C)C4=CC(=O)CCC4(C)C3CCC12C3101.8Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Melengestrol acetate,1TMS,isomer #1C=C1CC2C3C=C(C)C4=CC(O[Si](C)(C)C)=CCC4(C)C3CCC2(C)C1(OC(C)=O)C(C)=O3034.4Semi standard non polar33892256
Melengestrol acetate,1TMS,isomer #1C=C1CC2C3C=C(C)C4=CC(O[Si](C)(C)C)=CCC4(C)C3CCC2(C)C1(OC(C)=O)C(C)=O2914.0Standard non polar33892256
Melengestrol acetate,1TMS,isomer #1C=C1CC2C3C=C(C)C4=CC(O[Si](C)(C)C)=CCC4(C)C3CCC2(C)C1(OC(C)=O)C(C)=O3662.4Standard polar33892256
Melengestrol acetate,1TMS,isomer #2C=C1CC2C3C=C(C)C4=CC(=O)CCC4(C)C3CCC2(C)C1(OC(C)=O)C(=C)O[Si](C)(C)C3051.5Semi standard non polar33892256
Melengestrol acetate,1TMS,isomer #2C=C1CC2C3C=C(C)C4=CC(=O)CCC4(C)C3CCC2(C)C1(OC(C)=O)C(=C)O[Si](C)(C)C2927.3Standard non polar33892256
Melengestrol acetate,1TMS,isomer #2C=C1CC2C3C=C(C)C4=CC(=O)CCC4(C)C3CCC2(C)C1(OC(C)=O)C(=C)O[Si](C)(C)C3770.4Standard polar33892256
Melengestrol acetate,2TMS,isomer #1C=C1CC2C3C=C(C)C4=CC(O[Si](C)(C)C)=CCC4(C)C3CCC2(C)C1(OC(C)=O)C(=C)O[Si](C)(C)C3037.3Semi standard non polar33892256
Melengestrol acetate,2TMS,isomer #1C=C1CC2C3C=C(C)C4=CC(O[Si](C)(C)C)=CCC4(C)C3CCC2(C)C1(OC(C)=O)C(=C)O[Si](C)(C)C2992.3Standard non polar33892256
Melengestrol acetate,2TMS,isomer #1C=C1CC2C3C=C(C)C4=CC(O[Si](C)(C)C)=CCC4(C)C3CCC2(C)C1(OC(C)=O)C(=C)O[Si](C)(C)C3754.7Standard polar33892256
Melengestrol acetate,1TBDMS,isomer #1C=C1CC2C3C=C(C)C4=CC(O[Si](C)(C)C(C)(C)C)=CCC4(C)C3CCC2(C)C1(OC(C)=O)C(C)=O3281.4Semi standard non polar33892256
Melengestrol acetate,1TBDMS,isomer #1C=C1CC2C3C=C(C)C4=CC(O[Si](C)(C)C(C)(C)C)=CCC4(C)C3CCC2(C)C1(OC(C)=O)C(C)=O3127.0Standard non polar33892256
Melengestrol acetate,1TBDMS,isomer #1C=C1CC2C3C=C(C)C4=CC(O[Si](C)(C)C(C)(C)C)=CCC4(C)C3CCC2(C)C1(OC(C)=O)C(C)=O3787.9Standard polar33892256
Melengestrol acetate,1TBDMS,isomer #2C=C1CC2C3C=C(C)C4=CC(=O)CCC4(C)C3CCC2(C)C1(OC(C)=O)C(=C)O[Si](C)(C)C(C)(C)C3301.1Semi standard non polar33892256
Melengestrol acetate,1TBDMS,isomer #2C=C1CC2C3C=C(C)C4=CC(=O)CCC4(C)C3CCC2(C)C1(OC(C)=O)C(=C)O[Si](C)(C)C(C)(C)C3168.7Standard non polar33892256
Melengestrol acetate,1TBDMS,isomer #2C=C1CC2C3C=C(C)C4=CC(=O)CCC4(C)C3CCC2(C)C1(OC(C)=O)C(=C)O[Si](C)(C)C(C)(C)C3897.8Standard polar33892256
Melengestrol acetate,2TBDMS,isomer #1C=C1CC2C3C=C(C)C4=CC(O[Si](C)(C)C(C)(C)C)=CCC4(C)C3CCC2(C)C1(OC(C)=O)C(=C)O[Si](C)(C)C(C)(C)C3541.1Semi standard non polar33892256
Melengestrol acetate,2TBDMS,isomer #1C=C1CC2C3C=C(C)C4=CC(O[Si](C)(C)C(C)(C)C)=CCC4(C)C3CCC2(C)C1(OC(C)=O)C(=C)O[Si](C)(C)C(C)(C)C3401.7Standard non polar33892256
Melengestrol acetate,2TBDMS,isomer #1C=C1CC2C3C=C(C)C4=CC(O[Si](C)(C)C(C)(C)C)=CCC4(C)C3CCC2(C)C1(OC(C)=O)C(=C)O[Si](C)(C)C(C)(C)C3936.9Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Melengestrol acetate GC-MS (Non-derivatized) - 70eV, Positivesplash10-0k9x-2295000000-787a18faa3bd60b2ca712021-09-24Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Melengestrol acetate 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 - Melengestrol acetate 10V, Positive-QTOFsplash10-00kr-0009000000-b0792b5d8d62ca8e27ab2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Melengestrol acetate 20V, Positive-QTOFsplash10-004v-0289000000-f215efd9b81070fc5ade2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Melengestrol acetate 40V, Positive-QTOFsplash10-0006-8972000000-c0369785a0ae3ec578272021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Melengestrol acetate 10V, Negative-QTOFsplash10-0a4j-9007000000-67add7713098740299312021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Melengestrol acetate 20V, Negative-QTOFsplash10-0670-4009000000-27e328002c8a558302122021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Melengestrol acetate 40V, Negative-QTOFsplash10-0a4i-9000000000-588ee6697087d42604222021-10-12Wishart 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 ID17024
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkMelengestrol acetate
METLIN IDNot Available
PubChem Compound18020
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 ]