C21H32O2
316.5 g/mol
APIWarning
5alpha-Pregnane-3,20-dione
CAS566-65-4EC209-297-3
Category
API
Compound Class
Steroid
Primary Use
Pharmaceutical Raw Material
5α-Pregnane-3,20-dione is a steroid compound that serves as a pharmaceutical intermediate or active ingredient. It is structurally related to endogenous neurosteroids such as allopregnanolone, which is produced in the body from progesterone.
pharmaceutical intermediateactive pharmaceutical ingredient
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
H302Harmful if swallowed
H312Harmful in contact with skin
H332Harmful if inhaled
H351Suspected of causing cancer
H361Suspected of damaging fertility or the unborn child
Customs Tariff Classification
The international HS code for 5alpha-Pregnane-3,20-dione (CAS 566-65-4) is 2914.29.
HS code (international, 6-digit)
2914.29
EU CN code (8-digit)
2914 29 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
(5S,8R,9S,10S,13S,14S,17S)-17-acetyl-10,13-dimethyl-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-one
InChIKey
XMRPGKVKISIQBV-BJMCWZGWSA-N
SMILES
CC(=O)[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CC[C@@H]4[C@@]3(CCC(=O)C4)C)C
Synonyms (34)
- 3,20-Allopregnanedione
- 3,20-Dioxo-5a-pregnane
- 3,20-Dioxo-5alpha-pregnane
- 5 alpha Pregnanedione
- 5 beta Dihydroprogesterone
- 5 beta Pregnane 3,20 dione
- 5-alpha-Dihydroprogesterone
- 5A-pregnane-3-20-dione-allo
- 5a-Dihydroprogesterone
- 5a-Pregnan-3,20-dione
- 5a-Pregnane-3,20-dione
- 5alpha DHP
- 5alpha-Pregnan-3,20-dione
- 5alpha-Pregnane-3,20-dione
- 5b-pregnane-3,20-dione
- 5beta DHP
- Allodihydroprogeserone
- Allopregnan-3,20-dione
- Allopregnane-3,20-dione
- Pregnane-3, (5.alpha.)-
- Pregnane-3,20-dione, (5a)-
- allopregnandione
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