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Norethisterone

Norethisterone

CAS Number: 68-22-4

Molecular Formula: C20H26O2

About Norethisterone

17-alpha-ethynyl-19-nortestosterone CAS 68-22-4 is a foundational progestin primarly utilised in the production of high purity fine chemicals for contraceptive formulations and hormone replacement therapies. 19-Norethisterone serves as a critical component in the API intermediates market, where a prominent shift toward...

Norethisterone Specifications

CAS Number

68-22-4

Molecular Formula

C20H26O2

Molecular Weight

298.42 g/mol

IUPAC Name

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

Canonical SMILES

C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@@]2(C#C)O)CCC4=CC(=O)CC[C@H]34

InChI Key

VIKNJXKGJWUCNN-XGXHKTLJSA-N

PubChem CID

6230

CAS Number

68-22-4

Molecular Formula

C20H26O2

Molecular Weight

298.42 g/mol

IUPAC Name

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

Canonical SMILES

C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@@]2(C#C)O)CCC4=CC(=O)CC[C@H]34

InChI Key

VIKNJXKGJWUCNN-XGXHKTLJSA-N

PubChem CID

6230

Molecular Weight

298.42 g/mol

Physical appearance

White to light yellow powder to crystal

Hormone Therapy Agent

A synthetic progestogen used to treat heavy, painful, or irregular periods, premenstrual syndrome (PMS), and endometriosis by mimicking the activity of natural progesterone

Contraceptive Agent

An oral progestin-only pill used to prevent pregnancy by thickening cervical mucus and thinning the uterine lining

Oncology Treatment

A high-dose hormonal therapeutic used in the management of hormone-dependent female cancers, such as breast cancer

Period Delay Medication

A short-term hormonal treatment used to postpone menstruation by maintaining high progesterone levels to prevent the shedding of the womb lining

IVF Cycle Regulator

A pharmaceutical used in assisted reproduction to control the timing of the menstrual cycle ahead of egg collection or embryo transfer.

Norethisterone FAQs

Minimum Order Quantity

25 kg (pilot) · 1 MT (commercial)

Lead Time

3 – 5 weeks ex-works

Incoterms

FOB · CIF

Packaging

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

Regional Availability

India · EU · Middle East · Southeast Asia

Documentation

SDS · COA · TDS available on request

Compliance & Quality

REACH registered*

GHS/SDS available

ISO 9001:2015 site*

RoHS compliant*

Global sourcing network

Consistent quality & reliability

End-to-end technical support

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