atamestane

Modify Date: 2026-07-22 16:18:48

atamestane Structure
atamestane structure
Common Name atamestane
CAS Number 96301-34-7 Molecular Weight 298.41900
Density 1.12g/cm3 Boiling Point 443ºC at 760mmHg
Molecular Formula C20H26O2 Melting Point N/A
MSDS N/A Flash Point 165.2ºC

Summary: Atamestane, with the chemical name (8R,9S,10S,13S,14S)-1,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-dione, has a CAS number of 96301-34-7, with a molecular formula of C20H26O2 and a molecular weight of 298.41900. For research-use only, not for medical or clinical usage.


 Names

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

Name (8R,9S,10S,13S,14S)-1,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-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.

Density 1.12g/cm3
Boiling Point 443ºC at 760mmHg
Molecular Formula C20H26O2
Molecular Weight 298.41900
Flash Point 165.2ºC
Exact Mass 298.19300
PSA 34.14000
LogP 4.25350
Index of Refraction 1.561
InChIKey PEPMWUSGRKINHX-TXTPUJOMSA-N
SMILES CC1=CC(=O)C=C2CCC3C4CCC(=O)C4(C)CCC3C12C

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Hazard Codes Xi

 Precursor & DownStream

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

Precursor  4

DownStream  0

 Synonyms

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

Atamestane [INN]
Atamestano [Spanish]
1-methylandrosta-1,4-dien-3,17-dione
Atamestanum
1-methyl-1,4-androstadiene-3,17-dione
Atamestanum [Latin]
ATAMESTANE
SH-489
1-methylandrosta-1
Androsta-1,4-diene-3,17-dione,1-methyl
1-Methylandrosta-1,4-diene-3,17-dione
Atamestano

 atamestane | FAQ

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

Q: What is the English name of (8R,9S,10S,13S,14S)-1,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-dione?
A: The English name of (8R,9S,10S,13S,14S)-1,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-dione is (8R,9S,10S,13S,14S)-1,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-dione.
Q: What are the upstream materials of (8R,9S,10S,13S,14S)-1,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-dione?
A: Related upstream materials(CAS) of (8R,9S,10S,13S,14S)-1,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-dione: 153-00-4;7750-80-3;1099-80-5;4062-46-8.
Q: What is the InChIKey of (8R,9S,10S,13S,14S)-1,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-dione?
A: InChIKey of (8R,9S,10S,13S,14S)-1,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-dione is PEPMWUSGRKINHX-TXTPUJOMSA-N.
Q: What is the polar surface area (PSA) of (8R,9S,10S,13S,14S)-1,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-dione?
A: Polar surface area (PSA) of (8R,9S,10S,13S,14S)-1,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-dione is 34.14000.
Q: What English synonyms does (8R,9S,10S,13S,14S)-1,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-dione have?
A: English synonyms of (8R,9S,10S,13S,14S)-1,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-dione: Atamestane [INN], Atamestano [Spanish], 1-methylandrosta-1,4-dien-3,17-dione, Atamestanum, 1-methyl-1,4-androstadiene-3,17-dione, Atamestanum [Latin], ATAMESTANE, SH-489, 1-methylandrosta-1, Androsta-1,4-diene-3,17-dione,1-methyl, 1-Methylandrosta-1,4-diene-3,17-dione, Atamestano.
Q: What is the molecular weight of (8R,9S,10S,13S,14S)-1,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-dione?
A: Molecular weight of (8R,9S,10S,13S,14S)-1,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-dione is 298.41900.
Q: What is the LogP of (8R,9S,10S,13S,14S)-1,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-dione?
A: LogP of (8R,9S,10S,13S,14S)-1,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-dione is 4.25350.
Q: What is the CAS number of (8R,9S,10S,13S,14S)-1,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-dione?
A: CAS number of (8R,9S,10S,13S,14S)-1,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-dione is 96301-34-7.
Q: What is the molecular formula of (8R,9S,10S,13S,14S)-1,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-dione?
A: Molecular formula of (8R,9S,10S,13S,14S)-1,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-dione is C20H26O2.
Q: What is the SMILES notation of (8R,9S,10S,13S,14S)-1,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-dione?
A: SMILES notation of (8R,9S,10S,13S,14S)-1,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-dione is CC1=CC(=O)C=C2CCC3C4CCC(=O)C4(C)CCC3C12C.

 atamestanefactory

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

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
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