
Chemical identity
1,2-Dihydrodesonide
CAS 638-93-7 · C24H34O6
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-01384 |
|---|---|
| PubChem CID | 22792150 |
| Name | 1,2-Dihydrodesonide |
| CAS RN | 638-93-7 |
| Molecular formula | C24H34O6 |
| Molecular weight | 418.52 g/mol |
| IUPAC name | (6aR,6bS,7S,8aS,8bS,11aR,12aS,12bS)-7-hydroxy-8b-(2-hydroxyacetyl)-6a,8a,10,10-tetramethyl-5,6,6a,6b,7,8,8a,8b,11a,12,12a,12b-dodecahydro-1H-naphtho[2',1':4,5]indeno[1,2-d][1,3]dioxol-4(2H)-one |
| InChIKey | WOSCSXKIKGHZNL-LECWWXJVSA-N |
02Structure identifiers

Structure facts for this exact identity.
| Molecular formula | C24H34O6 |
|---|---|
| InChIKey | WOSCSXKIKGHZNL-LECWWXJVSA-N |
| Ring count | 5 |
| Defined stereocentres | 8 |
| Unassigned stereocentres | 0 |
| SMILES | C[C@]12CCC(=O)C=C1CC[C@@H]3[C@@H]2[C@H](C[C@]4([C@H]3C[C@@H]5[C@]4(OC(O5)(C)C)C(=O)CO)C)O |
|---|---|
| InChI | InChI=1S/C24H34O6/c1-21(2)29-19-10-16-15-6-5-13-9-14(26)7-8-22(13,3)20(15)17(27)11-23(16,4)24(19,30-21)18(28)12-25/h9,15-17,19-20,25,27H,5-8,10-12H2,1-4H3/t15-,16-,17-,19+,20+,22-,23-,24+/m0/s1 |
03Stereochemistry
The published structure contains 8 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 | NOT FOUND IN REVIEWED ENTRIES | CAS 638-93-7 was not found in the reviewed exact-identity entries. Generic, class, analogue, salt and isomer provisions were not evaluated. |
|---|---|---|
| SCOMET | NOT FOUND IN REVIEWED CAS ENTRIES | CAS 638-93-7 was not found in the reviewed exact-CAS mapping. 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
Desonide
View API and impurity familyOther names
- 16alpha-Hydroxyhydrocortisone 16,17-acetonide
- (1S,2S,4R,8S,9S,11S,12S,13R)-11-hydroxy-8-(2-hydroxyacetyl)-6,6,9,13-tetramethyl-5,7-dioxapentacyclo[10.8.0.02,9.04,8.013,18]icos-17-en-16-one
- Dihydrodesonide
- UNII-PKJ3YPH8PW
- DIHYDRODESONIDE [USP IMPURITY]
- 11beta,21-Dihydroxy-16alpha,17-isopropylidenedioxy-4-pregnene-3,20-dione
- Corticosterone, 16alpha,17-dihydroxy-, cyclic 16,17-acetal with acetone
- Pregn-4-ene-3,20-dione, 11,21-dihydroxy-16,17-((1-methylethylidene)bis(oxy))-, (11beta,16alpha)-
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 22792150
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.
