(5α)-Androst-2-en-17-one

Modify Date: 2026-07-16 11:10:55

(5α)-Androst-2-en-17-one Structure
(5α)-Androst-2-en-17-one structure
Common Name (5α)-Androst-2-en-17-one
CAS Number 963-75-7 Molecular Weight 272.425
Density 1.0±0.1 g/cm3 Boiling Point 371.6±42.0 °C at 760 mmHg
Molecular Formula C19H28O Melting Point 140-145ºC
MSDS N/A Flash Point 157.7±22.8 °C

 Names

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

Name Androst-2-en-17-one
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 1.0±0.1 g/cm3
Boiling Point 371.6±42.0 °C at 760 mmHg
Melting Point 140-145ºC
Molecular Formula C19H28O
Molecular Weight 272.425
Flash Point 157.7±22.8 °C
Exact Mass 272.214020
PSA 17.07000
LogP 5.30
Vapour Pressure 0.0±0.8 mmHg at 25°C
Index of Refraction 1.530
InChIKey ISJVDMWNISUFRJ-HKQXQEGQSA-N
SMILES CC12CCC3C(CCC4CC=CCC43C)C1CCC2=O
Storage condition Refrigerator

 Safety Information

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

WGK Germany -

 (5α)-Androst-2-en-17-oneBioassay

View more

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

Name: Competitive inhibition of aromatase in human microsomes using [1beta-3H]androstenedio...
Source: ChEMBL
Target: Aromatase
External Id: CHEMBL2061395
Name: Inhibition of aromatase in human placental microsomes using [1beta-3H]AD as substrate...
Source: ChEMBL
Target: Aromatase
External Id: CHEMBL5241253
Name: Inhibition of aromatase in human placental microsomes using [1beta-3H]androstenedione...
Source: ChEMBL
Target: Aromatase
External Id: CHEMBL2061392
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 Synonyms

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

MFCD00010479
5α-Androst-2-en-17-one
OCCLESTERONE
ANDROSTENONE
(5α)-Androst-2-en-17-one
Ba 2662
5A-ANDROST-16-EN-3-ONE
5-Androst-16-en-3-one
5A-ANDROSTA-2-EN-17-ONE
EINECS 242-220-1

 (5α)-Androst-2-en-17-one | FAQ

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

Q: What is the molecular formula of Androst-2-en-17-one?
A: Molecular formula of Androst-2-en-17-one is C19H28O.
Q: What is the CAS number of Androst-2-en-17-one?
A: CAS number of Androst-2-en-17-one is 963-75-7.
Q: What is the SMILES notation of Androst-2-en-17-one?
A: SMILES notation of Androst-2-en-17-one is CC12CCC3C(CCC4CC=CCC43C)C1CCC2=O.
Q: What is the LogP of Androst-2-en-17-one?
A: LogP of Androst-2-en-17-one is 5.30.
Q: What is the InChIKey of Androst-2-en-17-one?
A: InChIKey of Androst-2-en-17-one is ISJVDMWNISUFRJ-HKQXQEGQSA-N.
Q: What is the English name of Androst-2-en-17-one?
A: The English name of Androst-2-en-17-one is Androst-2-en-17-one.
Q: What are the storage conditions for Androst-2-en-17-one?
A: Storage conditions for Androst-2-en-17-one: Refrigerator.
Q: What is the boiling point of Androst-2-en-17-one?
A: Boiling point of Androst-2-en-17-one is 371.6±42.0 °C at 760 mmHg.
Q: What English synonyms does Androst-2-en-17-one have?
A: English synonyms of Androst-2-en-17-one: MFCD00010479, 5α-Androst-2-en-17-one, OCCLESTERONE, ANDROSTENONE, (5α)-Androst-2-en-17-one, Ba 2662, 5A-ANDROST-16-EN-3-ONE, 5-Androst-16-en-3-one, 5A-ANDROSTA-2-EN-17-ONE, EINECS 242-220-1.
Q: What is the melting point of Androst-2-en-17-one?
A: Melting point of Androst-2-en-17-one is 140-145ºC.

 (5α)-Androst-2-en-17-onefactory

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

Shanghai Nianxing Industrial Co., Ltd
Henan Tianfu Chemical Co., Ltd.
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