
Chemical identity
5-Androsten-3β-ol-17-one ethyleneketal
CAS 7745-40-6 · C21H32O3
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-03413 |
|---|---|
| PubChem CID | 11823779 |
| Name | 5-Androsten-3β-ol-17-one ethyleneketal |
| CAS RN | 7745-40-6 |
| Molecular formula | C21H32O3 |
| Molecular weight | 332.48 g/mol |
| IUPAC name | (3S,8R,9S,10R,13S,14S)-10,13-Dimethyl-1,2,3,4,7,8,9,10,11,12,13,14,15,16-tetradecahydrospiro[cyclopenta[a]phenanthrene-17,2'-[1,3]dioxolan]-3-ol |
| InChIKey | SXXRMGBMPQWUTB-XSEPRYCASA-N |
02Structure identifiers

The parsed structure contains 5 rings, includes aliphatic carbon, has 6 defined stereocentres. These statements are calculated from the published structure string.
| Defined stereocentres | 6 |
|---|---|
| Unassigned stereocentres | 0 |
| Ring count | 5 |
| Secondary amines | 0 |
| Tertiary amines | 0 |
| N-methyl amine sites | 0 |
| SMILES | C[C@]12CC[C@@H](CC1=CC[C@@H]3[C@@H]2CC[C@]4([C@H]3CCC45OCCO5)C)O |
|---|---|
| InChI | Not listed |
| Formula from structure | C21H32O3 |
| Molecular weight from structure | 332.48 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 7745-40-6 has no exact match in the reviewed published schedule. |
|---|---|---|
| SCOMET | NO EXACT REVIEWED CAS MATCH | CAS 7745-40-6 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
Androsterone / Testosterone
View API and impurity familyOther names
- 5-Androsten-3beta-ol-17-one ethyleneketal
- 7745-40-6
- (3S,8R,9S,10R,13S,14S)-10,13-dimethylspiro[1,2,3,4,7,8,9,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthrene-17,2'-1,3-dioxolane]-3-ol
- SXXRMGBMPQWUTB-XSEPRYCASA-N
- DHEA ethylene ketal
- orb2665336
- RX35SLJ776
- SCHEMBL4663831
- CHEMBL1080647
- (3aS,3bR,7S,9aR,9bS,11aS)-9a,11a-dimethyl-2,3,3a,3b,4,6,7,8,9,9a,9b,10,11,11a-tetradecahydrospiro[cyclopenta[a]phenanthrene-1,2'-[1,3]dioxolan]-7-ol
- 17,17-Ethylendioxyandrost-5-en-3
- A-ol
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 11823779
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.
