5-ALPHA-DIHYDRO SUBSTANCE 'S'

Modify Date: 2026-07-15 09:41:35

5-ALPHA-DIHYDRO SUBSTANCE 'S' Structure
5-ALPHA-DIHYDRO SUBSTANCE 'S' structure
Common Name 5-ALPHA-DIHYDRO SUBSTANCE 'S'
CAS Number 312-99-2 Molecular Weight 348.47600
Density N/A Boiling Point N/A
Molecular Formula C21H32O4 Melting Point N/A
MSDS N/A Flash Point N/A

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name (5α)-17,21-Dihydroxypregnane-3,20-dione
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Molecular Formula C21H32O4
Molecular Weight 348.47600
Exact Mass 348.23000
PSA 74.60000
LogP 2.89070
InChIKey WNIBSYGPDJBVOA-ROQVDZSBSA-N
SMILES CC12CCC(=O)CC1CCC1C2CCC2(C)C1CCC2(O)C(=O)CO

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

~94%

5-ALPHA-DIHYDRO SUBSTANCE 'S' Structure

5-ALPHA-DIHYDRO...

CAS#:312-99-2

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Literature: Gerasimova, M. L.; Gusarova, T. I.; Ryzhkova, V. M.; Bykova, T. M.; Alekseeva, L. M. Pharmaceutical Chemistry Journal, 1989 , vol. 23, # 10 p. 863 - 868 Khimiko-Farmatsevticheskii Zhurnal, 1989 , vol. 23, # 10 p. 1259 - 1263

~%

5-ALPHA-DIHYDRO SUBSTANCE 'S' Structure

5-ALPHA-DIHYDRO...

CAS#:312-99-2

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Literature: Murahashi, Shun-Ichi; Saito, Takao; Hanaoka, Hidenori; Murakami, Yoshihide; Naota, Takeshi; et al. Journal of Organic Chemistry, 1993 , vol. 58, # 11 p. 2929 - 2930

~%

5-ALPHA-DIHYDRO SUBSTANCE 'S' Structure

5-ALPHA-DIHYDRO...

CAS#:312-99-2

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Literature: Murahashi, Shun-Ichi; Saito, Takao; Hanaoka, Hidenori; Murakami, Yoshihide; Naota, Takeshi; et al. Journal of Organic Chemistry, 1993 , vol. 58, # 11 p. 2929 - 2930

~8%

5-ALPHA-DIHYDRO SUBSTANCE 'S' Structure

5-ALPHA-DIHYDRO...

CAS#:312-99-2

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Literature: Holland, Herbert L. Steroids, 1995 , vol. 60, # 9 p. 646 - 649

~34%

5-ALPHA-DIHYDRO SUBSTANCE 'S' Structure

5-ALPHA-DIHYDRO...

CAS#:312-99-2

Learn More
Literature: Holland, Herbert L. Steroids, 1995 , vol. 60, # 9 p. 646 - 649

~%

5-ALPHA-DIHYDRO SUBSTANCE 'S' Structure

5-ALPHA-DIHYDRO...

CAS#:312-99-2

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Literature: Hosoda; Takasaki; Miura; et al. Chemical and Pharmaceutical Bulletin, 1985 , vol. 33, # 10 p. 4281 - 4287

~%

5-ALPHA-DIHYDRO SUBSTANCE 'S' Structure

5-ALPHA-DIHYDRO...

CAS#:312-99-2

Learn More
Literature: Murahashi, Shun-Ichi; Saito, Takao; Hanaoka, Hidenori; Murakami, Yoshihide; Naota, Takeshi; et al. Journal of Organic Chemistry, 1993 , vol. 58, # 11 p. 2929 - 2930

~%

5-ALPHA-DIHYDRO SUBSTANCE 'S' Structure

5-ALPHA-DIHYDRO...

CAS#:312-99-2

Learn More
Literature: Forchielli et al. Journal of Biological Chemistry, 1955 , vol. 215, p. 713,717

 Precursor & DownStream

This table lists upstream starting materials and downstream derivative products related to this chemical.

Precursor  5

DownStream  1

 5-ALPHA-DIHYDRO SUBSTANCE 'S'Bioassay

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This table contains target information, in‑vitro & in‑vivo assay data for this compound.

Name: Inhibition of human 17beta-HSD7 expressed in HEK293 cells assessed as inhibition of r...
Source: ChEMBL
Target: 3-keto-steroid reductase/17-beta-hydroxysteroid dehydrogenase 7
External Id: CHEMBL1106725
Name: Inhibition of human 17beta-HSD7 expressed in HEK293 cells assessed as inhibition of r...
Source: ChEMBL
Target: 3-keto-steroid reductase/17-beta-hydroxysteroid dehydrogenase 7
External Id: CHEMBL1106724
Total 2, Current Page 1 of 1
1

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

Alloepipregnanolone
3-Hydroxypregnan-20-one
5A-PREGNAN-3B-OL-20-ONE
ALLOPREGNAN-3B-OL-20-ONE
1-((3S,5S,10S,13S,17S)-3-hydroxy-10,13-dimethylhexadecahydro-1H cyclopenta[a]phenanthren-17-yl)ethanone
Isopregnanolone
Tetrahydroprogesterone
epi-allopregnanolone
ALLOPREGNANOLONE

 5-ALPHA-DIHYDRO SUBSTANCE 'S' | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the CAS number of (5α)-17,21-Dihydroxypregnane-3,20-dione?
A: CAS number of (5α)-17,21-Dihydroxypregnane-3,20-dione is 312-99-2.
Q: What are the downstream products of (5α)-17,21-Dihydroxypregnane-3,20-dione?
A: Related downstream products(CAS) of (5α)-17,21-Dihydroxypregnane-3,20-dione: 640-87-9.
Q: What is the polar surface area (PSA) of (5α)-17,21-Dihydroxypregnane-3,20-dione?
A: Polar surface area (PSA) of (5α)-17,21-Dihydroxypregnane-3,20-dione is 74.60000.
Q: What is the molecular weight of (5α)-17,21-Dihydroxypregnane-3,20-dione?
A: Molecular weight of (5α)-17,21-Dihydroxypregnane-3,20-dione is 348.47600.
Q: What is the SMILES notation of (5α)-17,21-Dihydroxypregnane-3,20-dione?
A: SMILES notation of (5α)-17,21-Dihydroxypregnane-3,20-dione is CC12CCC(=O)CC1CCC1C2CCC2(C)C1CCC2(O)C(=O)CO.
Q: What are the upstream materials of (5α)-17,21-Dihydroxypregnane-3,20-dione?
A: Related upstream materials(CAS) of (5α)-17,21-Dihydroxypregnane-3,20-dione: 481-29-8;640-87-9;152-58-9;23775-86-2;74499-15-3.
Q: What is the InChIKey of (5α)-17,21-Dihydroxypregnane-3,20-dione?
A: InChIKey of (5α)-17,21-Dihydroxypregnane-3,20-dione is WNIBSYGPDJBVOA-ROQVDZSBSA-N.
Q: What is the English name of (5α)-17,21-Dihydroxypregnane-3,20-dione?
A: The English name of (5α)-17,21-Dihydroxypregnane-3,20-dione is (5α)-17,21-Dihydroxypregnane-3,20-dione.
Q: What is the Chinese name of 312-99-2?
A: Chinese name of 312-99-2 is 312-99-2.
Q: What is the LogP of (5α)-17,21-Dihydroxypregnane-3,20-dione?
A: LogP of (5α)-17,21-Dihydroxypregnane-3,20-dione is 2.89070.

 5-ALPHA-DIHYDRO SUBSTANCE 'S'factory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Dayang Chem (Hangzhou) Co., Ltd.
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