C21H32O3
332.5 g/mol
Pharmaceutical IntermediateWarning
3beta-Acetoxy-5alpha-androstan-17-one
CAS1239-31-2
Category
Pharmaceutical Intermediate
Compound Class
Steroid
Primary Use
Pharmaceutical Intermediate
3beta-Acetoxy-5alpha-androstan-17-one is a steroidal compound with a defined stereochemistry, commonly used as an intermediate in the synthesis of pharmaceuticals. Its structure features a cyclopenta[a]phenanthrene core with an acetate ester and a ketone functional group.
intermediate for steroid pharmaceutical synthesislaboratory reagent for chemical reactions
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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Related Compounds
ApplicationSame Use
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Referencesame scaffold
Epiandrosterone
CAS481-29-8
pharmaceutical raw material
Referencesame scaffold
Androsterone
CAS53-41-8
pharmaceutical raw material
Safety Reference
Warning
H312Harmful in contact with skin
H332Harmful if inhaled
H351Suspected of causing cancer
Customs Tariff Classification
The international HS code for 3beta-Acetoxy-5alpha-androstan-17-one (CAS 1239-31-2) is 2915.39.
HS code (international, 6-digit)
2915.39
EU CN code (8-digit)
2915 39 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
[(3S,5S,8R,9S,10S,13S,14S)-10,13-dimethyl-17-oxo-1,2,3,4,5,6,7,8,9,11,12,14,15,16-tetradecahydrocyclopenta[a]phenanthren-3-yl] acetate
InChIKey
FDCINQSOYQUNKB-HGDYXINXSA-N
SMILES
CC(=O)O[C@H]1CC[C@]2([C@H](C1)CC[C@@H]3[C@@H]2CC[C@]4([C@H]3CCC4=O)C)C
Synonyms (17)
- Epiandrosterone acetate
- Isoandrosterone acetate
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