
Chemical identity
21-Chlorotestosterone Cypionate
CAS not listed · C27H39ClO3
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-04293 |
|---|---|
| PubChem CID | 169446831 |
| Name | 21-Chlorotestosterone Cypionate |
| CAS RN | Not listed |
| Molecular formula | C27H39ClO3 |
| Molecular weight | 447.1 g/mol |
| IUPAC name | (8R,9S,10R,13S,14S,17S)-10,13-dimethyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl 2-chloro-3-cyclopentylpropanoate |
| InChIKey | LUPSMKROARZHSH-RNHFGAIVSA-N |
02Structure identifiers

Structure facts for this exact identity.
| Molecular formula | C27H39ClO3 |
|---|---|
| InChIKey | LUPSMKROARZHSH-RNHFGAIVSA-N |
| Ring count | 5 |
| Defined stereocentres | 6 |
| Unassigned stereocentres | 1 |
| SMILES | C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@@H]2OC(=O)C(CC4CCCC4)Cl)CCC5=CC(=O)CC[C@]35C |
|---|---|
| InChI | InChI=1S/C27H39ClO3/c1-26-13-11-19(29)16-18(26)7-8-20-21-9-10-24(27(21,2)14-12-22(20)26)31-25(30)23(28)15-17-5-3-4-6-17/h16-17,20-24H,3-15H2,1-2H3/t20-,21-,22-,23?,24-,26-,27-/m0/s1 |
03Stereochemistry
The published structure contains 6 defined and 1 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 | NOT FOUND IN REVIEWED ENTRIES | No CAS number is available for an exact comparison. Generic and analogue entries were not evaluated. |
|---|---|---|
| SCOMET | NOT FOUND IN REVIEWED CAS ENTRIES | No CAS number is available for an exact comparison. Generic and analogue entries were not evaluated. |
- Narcotic Drugs and Psychotropic Substances Act, 1985, ScheduleDepartment of Revenue, Government of India · source version 1985-09-16
- Controlled-substances notifications and amendmentsDepartment of Revenue, Government of India · source version 2026-03-11
- Appendix 3, SCOMET ListDirectorate General of Foreign Trade, Government of India · source version 2024-09-02
05Names and relationships
Associated parent compound
Testosterone
View API and impurity familyOther names
No synonyms are listed.
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 169446831
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.
