
Chemical identity
Cyproterone Acetate EP Impurity G
CAS 23814-84-8 · C24H31ClO5
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-11647 |
|---|---|
| PubChem CID | 13423627 |
| Name | Cyproterone Acetate EP Impurity G |
| CAS RN | 23814-84-8 |
| Molecular formula | C24H31ClO5 |
| Molecular weight | 434.96 g/mol |
| IUPAC name | 6β-chloro-7α-hydroxy-3,20-dioxo-1β,2β-dihydro-3′Hcyclopropa[ 1,2]pregna-1,4-dien-17-yl acetate |
| InChIKey | MQCUOQYFPPINFT-SXXHTHPYSA-N |
02Structure identifiers

The parsed structure contains 5 rings, includes aliphatic carbon, has 10 defined stereocentres, contains at least one halogen atom. These statements are calculated from the published structure string.
| Defined stereocentres | 10 |
|---|---|
| Unassigned stereocentres | 0 |
| Ring count | 5 |
| Secondary amines | 0 |
| Tertiary amines | 0 |
| N-methyl amine sites | 0 |
| SMILES | CC(=O)[C@]1(CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2[C@@H]([C@H](C4=CC(=O)[C@@H]5C[C@@H]5[C@]34C)Cl)O)C)OC(=O)C |
|---|---|
| InChI | Not listed |
| Formula from structure | C24H31ClO5 |
| Molecular weight from structure | 434.96 g/mol |
03Stereochemistry
The published structure contains 10 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.
Published same-connectivity configurations
1 recordThese 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 / RCS | NO EXACT MATCH FOUND | CAS 23814-84-8 has no exact match in the reviewed published schedule. |
|---|---|---|
| SCOMET | NO EXACT REVIEWED CAS MATCH | CAS 23814-84-8 has no exact match in the reviewed SCOMET list. |
| Review date | 2026-08-01 | Recheck the current official instruments for the material, concentration, activity and date in question. |
- Narcotic Drugs and Psychotropic Substances Act, 1985, ScheduleDepartment of Revenue, Government of India · reviewed 2026-08-01
- Controlled-substances notifications and amendmentsDepartment of Revenue, Government of India · reviewed 2026-08-01
- Appendix 3, SCOMET ListDirectorate General of Foreign Trade, Government of India · reviewed 2026-08-01
05Names and relationships
Associated parent compound
Cyproterone Acetate
View API and impurity familyOther names
- (1β,2β,6β-7α)-17-(Acetyloxy)-6-chloro-1,2-dihydro-7-hydroxy-3'H-cyclopropa[1,2]pregna-1,4-diene-3,20-dione
- 6β-Chloro-1β,2β-dihydro-7α,17-dihydroxy-3'H- cyclopropa[1,2]pregna-1,4-diene-3,20-dione 17-Acetate
- 3'H-Cyclopropa[1,2]pregna-1,4-diene-3,20-dione, 17-(acetyloxy)-6-chloro-1,2-dihydro-7-hydroxy-, (1beta,2beta,6beta,7alpha)-
- RefChem:484740
- 23814-84-8
- Cyproterone Acetate EP Impurity G
- 6b-Chloro-7a-hydroxy-6,7-dihydro Cyproterone Acetate
- [(1S,2S,3S,5R,9S,10S,11R,12S,15R,16S)-15-Acetyl-9-chloro-10-hydroxy-2,16-dimethyl-6-oxo-15-pentacyclo[9.7.0.02,8.03,5.012,16]octadec-7-enyl] acetate
- (2aR,3aS,3bS,3cS,5aS,6R,8aS,8bR,9S,10S)-6-acetyl-10-chloro-9-hydroxy-3b,5a-dimethyl-2-oxo-2,2a,3,3a,3b,3c,4,5,5a,6,7,8,8a,8b,9,10-hexadecahydrocyclopenta[a]cyclopropa[g]phenanthren-6-yl acetate
- MQCUOQYFPPINFT-SXXHTHPYSA-N
- 3'H-Cyclopropa[1,2]pregna-1,4-diene-3,20-dione, 17-(acetyloxy)-6-chloro-1,2-dihydro-7-hydroxy-, (1ss,2ss,6ss,7a)- (9CI)
- 3'H-Cyclopropa[1,2]pregna-1,4-diene-3,20-dione, 6ss-chloro-1ss,2ss-dihydro-7a,17-dihydroxy-, 17-acetate (8CI)
06Documented history
Dated discovery, occurrence, use and issue claims are published only when a suitable primary or government source is available.
No verified discovery, first report, occurrence, use or issue event is currently available for this identity.
07Sources
- S01PubChem compound record, CID 13423627
Names and machine-readable chemical identity properties.
- S02NCBI website and molecular data policies
Reuse policy for NCBI molecular data. This page does not reproduce vendor descriptions or contributed narrative text.
- S03Narcotic Drugs and Psychotropic Substances Act, 1985, Schedule
Department of Revenue, Government of India. Used for the exact-compound India status shown on this page.
- S04Controlled-substances notifications and amendments
Department of Revenue, Government of India. Used for the exact-compound India status shown on this page.
- S05Appendix 3, SCOMET List
Directorate General of Foreign Trade, Government of India. Used for the exact-compound India status shown on this page.
