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ETHISTERONE

ETHISTERONE

CAS Number: 434-03-7

Molecular Formula: C21H28O2

About ETHISTERONE

Ethisterone (CAS 434-03-7), one of the first orally bioavailable synthetic progestogens, remains a critical high purity fine chemical for the US pharmaceutical industry, particularly as a versatile steroid building block in the synthesis of advanced hormonal contraceptives and menstrual disorder treatments. 17alpha-Eth...

ETHISTERONE Specifications

CAS Number

434-03-7

Molecular Formula

C21H28O2

Molecular Weight

312.45 g/mol

IUPAC Name

(8R,9S,10R,13S,14S,17R)-17-ethynyl-17-hydroxy-10,13-dimethyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-one

Canonical SMILES

C[C@]12CCC(=O)C=C1CC[C@@H]3[C@@H]2CC[C@]4([C@H]3CC[C@]4(C#C)O)C

InChI Key

CHNXZKVNWQUJIB-CEGNMAFCSA-N

PubChem CID

5284557.0

CAS Number

434-03-7

Molecular Formula

C21H28O2

Molecular Weight

312.45 g/mol

IUPAC Name

(8R,9S,10R,13S,14S,17R)-17-ethynyl-17-hydroxy-10,13-dimethyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-one

Canonical SMILES

C[C@]12CCC(=O)C=C1CC[C@@H]3[C@@H]2CC[C@]4([C@H]3CC[C@]4(C#C)O)C

InChI Key

CHNXZKVNWQUJIB-CEGNMAFCSA-N

PubChem CID

5284557.0

Molecular Weight

312.45 g/mol

Physical appearance

White to light yellow to light orange powder to crystal

Hormonal Therapy

A synthetic progestin used in the treatment of gynecological disorders, including irregular menstruation, amenorrhea, and premenstrual syndrome

Pharmaceutical Intermediate

A vital building block and metabolite of danazol utilized as an intermediate in the synthesis of various medicinal compounds such as spironolactone

Cell Culture Component

A progestational agent used as a component in Dulbecco's modified eagle medium (DMEM) to culture transfected COS-7 cells for gene transfection and transient transfection assays

Reference Standard

A certified reference material intended for use in specified quality tests, assays, and laboratory analysis as prescribed by USP and EP compendia.

ETHISTERONE FAQs

Minimum Order Quantity

25 kg (evaluation) · 1 MT (commercial)

Lead Time

3 – 5 weeks estimated

Delivery Terms

FOB*

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

US Availability

US Facility Inventory

Documentation

US SDS · COA · TDS · Specification sheet

US Regulatory & Quality Information

TSCA status*

US SDS / HazCom*

GHS classification*

ISO 9001:2015 site*

DOT shipping classification*

FDA status*

EPA status*

California Prop 65*

Reliable US supply chain

Regulatory compliance

On-time delivery

Technical expert support

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