C21H30O3
330.5 g/mol
Pharmaceutical IntermediateWarning
16alpha,17alpha-Epoxypregnenolone
CAS974-23-2EC213-548-2
Category
Pharmaceutical Intermediate
Compound Class
Steroid
Primary Use
Pharmaceutical Intermediate
16alpha,17alpha-Epoxypregnenolone is an epoxy steroid derived from pregnenolone, featuring an epoxy group at the 16alpha and 17alpha positions, along with a 3beta-hydroxy group and a Delta(5) double bond. It is a C21-steroid and 20-oxo steroid used as a pharmaceutical intermediate in steroid synthesis.
pharmaceutical intermediate for steroid synthesisresearch compound for epoxy steroid chemistry
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
H319Causes serious eye irritation
Customs Tariff Classification
The international HS code for 16alpha,17alpha-Epoxypregnenolone (CAS 974-23-2) is 2914.50.
HS code (international, 6-digit)
2914.50
EU CN code (8-digit)
2914 50 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
1-[(1R,2S,4R,6S,7S,10S,11R,14S)-14-hydroxy-7,11-dimethyl-5-oxapentacyclo[8.8.0.02,7.04,6.011,16]octadec-16-en-6-yl]ethanone
InChIKey
UQVIXFCYKBWZPJ-XXHSLLPRSA-N
SMILES
CC(=O)[C@]12[C@H](O1)C[C@@H]3[C@@]2(CC[C@H]4[C@H]3CC=C5[C@@]4(CC[C@@H](C5)O)C)C
Synonyms (22)
- 16,17-Epoxypregnenolone
- 16,17-alpha Epoxypregnenolone
- 16,17a-Epoxypregnenolone
- 16A,17A-epoxypregnenolone
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