C20H29NO3
331.4 g/mol
APIWarning
Dutasteride methyl ester
CAS103335-41-7
Category
API
Compound Class
Steroid
Primary Use
Pharmaceutical Raw Material
Dutasteride methyl ester is a chemical compound used as an impurity reference standard in the manufacturing and quality control of the active pharmaceutical ingredient dutasteride. It is structurally related to androgen esters and is employed primarily for analytical and research purposes within pharmaceutical development.
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Safety Reference
Warning
H361Suspected of damaging fertility or the unborn child
Customs Tariff Classification
The international HS code for Dutasteride methyl ester (CAS 103335-41-7) is 2933.79.
HS code (international, 6-digit)
2933.79
EU CN code (8-digit)
2933 79 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
methyl (1S,3aS,3bS,5aR,9aR,9bS,11aS)-9a,11a-dimethyl-7-oxo-1,2,3,3a,3b,4,5,5a,6,9b,10,11-dodecahydroindeno[5,4-f]quinoline-1-carboxylate
InChIKey
WMSQGMYJYBSBKA-ALHYADCGSA-N
SMILES
C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@@H]2C(=O)OC)CC[C@@H]4[C@@]3(C=CC(=O)N4)C
Synonyms (19)
- Finasteride EP Impurity B
- Dutasteride Impurity 1
- Dutasteride methyl ester
- FINASTERIDE IMPURITY B
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