Chemical identity

Dienogest EP Impurity G / ∆9,11-Dehydro-17α-Cyanomethyl Estradiol

CAS 86153-38-0 · C20H23NO2

01Identity

Identifiers and names for this exact compound. Empty fields are left unassigned.

Lazychem IDLC-12843
PubChem CID54045351
NameDienogest EP Impurity G / ∆9,11-Dehydro-17α-Cyanomethyl Estradiol
CAS RN86153-38-0
Molecular formulaC20H23NO2
Molecular weight309.4 g/mol
IUPAC name[3,17-Dihydroxyestra-1,3,5(10),9(11)-tetraen-17a-yl]-acetonitrile
InChIKeyLPEAVAOTAWKUPC-FUMNGEBKSA-N

02Structure identifiers

2D structurePubChem CID 54045351
Two-dimensional chemical structure of Dienogest EP Impurity G / ∆9,11-Dehydro-17α-Cyanomethyl Estradiol, CAS 86153-38-0
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 4 rings, includes aromatic atoms, includes aliphatic carbon, has 4 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres4
Unassigned stereocentres0
Ring count4
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESC[C@]12CC=C3[C@H]([C@@H]1CC[C@]2(CC#N)O)CCC4=C3C=CC(=C4)O
InChINot listed
Formula from structureC20H23NO2
Molecular weight from structure309.4 g/mol

03Stereochemistry

The published structure contains 4 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres4Structure assigned
Unassigned centres0Structure unspecified
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 16Before symmetry reduction

Published same-connectivity configurations

1 record

These records have the same connectivity, molecular formula and protonation layer, but a different complete InChIKey stereochemical layer. Only separately structure-linked records are shown.

No additional structure-linked configuration with the same connectivity is currently present in the LazyChem dataset.

Scope: The mathematical 2^n value is only an upper bound. Symmetry and other stereogenic elements can change the number of distinct stereoisomers. A hypothetical configuration is not published as a compound record without a verified structure identity.

04India status for this compound

These results apply only to this exact compound name and CAS number. Confirm the current official instruments before making a regulatory decision.

NDPS / RCSNO EXACT MATCH FOUNDCAS 86153-38-0 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 86153-38-0 has no exact match in the reviewed SCOMET list.
Review date2026-08-01Recheck the current official instruments for the material, concentration, activity and date in question.

05Names and relationships

Associated parent compound

Dienogest

View API and impurity family

Other names

  • Dienoges EP Impurity G
  • Dienogest EP Impurity G
  • ∆9, 11-Dehydro-17α-Cyanomethyl Estradiol
  • Dienogest Impurity G
  • 86153-38-0
  • STS-825
  • Dienogest metabolite (sts 825)
  • 7T4537YE2X
  • 17alpha-Cyanomethylestra-1,3,5(10),9(11)-tetraene-3,17beta-diol
  • 9,11-Dehydro-17a-cyanoMethyl Estradiol
  • UNII-7T4537YE2X
  • 2-[(8S,13S,14S,17R)-3,17-dihydroxy-13-methyl-7,8,12,14,15,16-hexahydro-6H-cyclopenta[a]phenanthren-17-yl]acetonitrile

Related records from the same parent family

06Documented history

Dated discovery, occurrence, use and issue claims are published only when a suitable primary or government source is available.

No dated history available

No verified discovery, first report, occurrence, use or issue event is currently available for this identity.

07Sources