
Chemical identity
Chlormadinone Acetate EP Impurity J
CAS 1961-77-9 · C21H27ClO3
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-10437 |
|---|---|
| PubChem CID | 5284533 |
| Name | Chlormadinone Acetate EP Impurity J |
| CAS RN | 1961-77-9 |
| Molecular formula | C21H27ClO3 |
| Molecular weight | 362.89 g/mol |
| IUPAC name | 6-chloro-17-hydroxypregna-4,6-diene-3,20-dione |
| InChIKey | VUHJZBBCZGVNDZ-TTYLFXKOSA-N |
02Structure identifiers

The parsed structure contains 4 rings, includes aliphatic carbon, has 6 defined stereocentres, contains at least one halogen atom. These statements are calculated from the published structure string.
| Defined stereocentres | 6 |
|---|---|
| Unassigned stereocentres | 0 |
| Ring count | 4 |
| 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]2C=C(C4=CC(=O)CC[C@]34C)Cl)C)O |
|---|---|
| InChI | Not listed |
| Formula from structure | C21H27ClO3 |
| Molecular weight from structure | 362.89 g/mol |
03Stereochemistry
The published structure contains 6 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 1961-77-9 has no exact match in the reviewed published schedule. |
|---|---|---|
| SCOMET | NO EXACT REVIEWED CAS MATCH | CAS 1961-77-9 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
Chlormadinone
View API and impurity familyOther names
- Chlormadinone
- 1961-77-9
- Chlormadinonum
- Clormadinona
- Clormadinone
- DTXSID3022796
- SDS4N642GG
- DTXCID702796
- 17-(HYDROXY)-6-CHLOROPREGNA-4,6-DIENE-3,20-DIONE
- PREGNA-4,6-DIENE-3,20-DIONE, 17-(HYDROXY)-6-CHLORO-
- RefChem:575661
- G03DB06
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 5284533
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.
