
Dutasteride EP Impurity C / Dutasteride Ethyl Ester
CAS 157307-36-3
AHSRUURQZYMTKR-ICVGDBTHSA-N
Current configuration
Identität
CAS 157307-36-3 · C21H31NO3
| Lazychem ID | LC-13639 |
|---|---|
| CAS RN | 157307-36-3 |
| PubChem CID | 131699180 |
| Molecular formula | C21H31NO3 |
| Molecular weight | 345.48 g/mol |
| IUPAC name | Ethyl 3-oxo-4-aza-5α-androst-1-ene-17β-carboxylate |
| InChIKey | AHSRUURQZYMTKR-ICVGDBTHSA-N |

The parsed structure contains 4 rings, includes aliphatic carbon, has 7 defined stereocentres. These statements are calculated from the published structure string.
| Defined stereocentres | 7 |
|---|---|
| Ring count | 4 |
| Secondary amines | 0 |
| Tertiary amines | 0 |
| SMILES | CCOC(=O)[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CC[C@@H]4[C@@]3(C=CC(=O)N4)C)C |
|---|---|
| InChI | Nicht angegeben |
The published structure contains 7 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.
These records have the same connectivity, molecular formula and protonation layer, but a different complete InChIKey stereochemical layer. Only separately structure-linked records are shown.

CAS 157307-36-3
AHSRUURQZYMTKR-ICVGDBTHSA-N
Current configuration
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.
Exact-compound status is evaluated only against the published name and CAS number. Confirm the current official instrument before a regulatory decision.
Dutasteride
Verunreinigungen und verwandte VerbindungenStructure and machine-readable chemical identifiers.