Chemical identity

20-Dihydrodydrogesterone (Mixture of 20-alpha and beta Isomers)

CAS 86495-64-9 · C21H30O2

01Identity

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

Lazychem IDLC-04282
PubChem CID6451883
Name20-Dihydrodydrogesterone (Mixture of 20-alpha and beta Isomers)
CAS RN86495-64-9
Molecular formulaC21H30O2
Molecular weight314.47 g/mol
IUPAC name(8S,9R,10S,13S,14S,17S)-17-(1-hydroxyethyl)-10,13-dimethyl-1,2,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one
InChIKeyIQPNZLYVKOVQGH-QMEIQTAGSA-N

02Structure identifiers

2D structurePubChem CID 6451883
Two-dimensional chemical structure of 20-Dihydrodydrogesterone (Mixture of 20-alpha and beta Isomers), CAS 86495-64-9
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 6 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres6
Unassigned stereocentres1
Ring count4
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESCC([C@H]1CC[C@@H]2[C@@]1(CC[C@@H]3[C@H]2C=CC4=CC(=O)CC[C@@]34C)C)O
InChINot listed
Formula from structureC21H30O2
Molecular weight from structure314.47 g/mol

03Stereochemistry

The published structure contains 6 defined and 1 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres6Structure assigned
Unassigned centres1Structure unspecified
Assignment statusPartially assignedExact published identity
Tetrahedral upper bound≤ 128Before symmetry reduction

Published same-connectivity configurations

3 records

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.

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 86495-64-9 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 86495-64-9 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

  • Dydrogesterone Impurity 12
  • SCHEMBL4743463
  • 86495-64-9
  • (8S,9R,10S,13S,14S,17S)-17-(1-hydroxyethyl)-10,13-dimethyl-1,2,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one

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