Chemical identity

Dydrogesterone EP Impurity A

CAS 23035-53-2 · C21H26O2

01Identity

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

Lazychem IDLC-13675
PubChem CID71587052
NameDydrogesterone EP Impurity A
CAS RN23035-53-2
Molecular formulaC21H26O2
Molecular weight310.4 g/mol
IUPAC name(9S,10S,13R,17S)-17-Acetyl-10,13-dimethyl-1,2,9,10,11,12,13,15,16,17-decahydro-3H-cyclopenta[a]phenanthren-3-one
InChIKeyHMDYHHQZKIYROJ-CWJKEVGVSA-N

02Structure identifiers

2D structurePubChem CID 71587052
Two-dimensional chemical structure of Dydrogesterone EP Impurity A, CAS 23035-53-2
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 4 rings, 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
SMILESCC(=O)[C@H]1CCC2=C3C=CC4=CC(=O)CC[C@]4([C@@H]3CC[C@]12C)C
InChINot listed
Formula from structureC21H26O2
Molecular weight from structure310.4 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 23035-53-2 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 23035-53-2 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

Dydrogesterone

View API and impurity family

Other names

  • 9beta,10alpha-Pregna-4,6,8(14)-triene-3,20-dione
  • 23035-53-2
  • Dydrogesterone impurity A
  • UNII-LJ088CWL1E
  • LJ088CWL1E
  • Dydrogesterone impurity A [EP]
  • Dydrogesterone specified impurity A [EP]
  • Pregna-4,6,8(14)-triene-3,20-dione, (9beta,10alpha)-
  • DTXSID00177589
  • DYDROGESTERONE IMPURITY A [EP IMPURITY]
  • RefChem:108227
  • DTXCID10100080

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