Norethindrone EP Impurity A

Name: Norethindrone EP Impurity A
Brand: Vaqora Chemicals
SKU: VQ-023289

About Norethindrone EP Impurity A

Norethindrone EP Impurity A (CAS 31528-46-8) is a pharmacopeial impurity of Norethindrone offered by Vaqora Chemicals. The compound has the formula C20H24O2, corresponding to a molecular weight of 296.4 g/mol. Common synonyms include Norethindrone Acetate EP Impurity A and Norethisterone - Impurity A.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

This Norethindrone impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Norethindrone EP Impurity A is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Pharmacopeial method verification
Impurity profiling
QC release testing
ANDA / DMF filings

Industries

Related to Norethindrone

View every impurity, metabolite and intermediate we list for Norethindrone.

Norethindrone impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Norethindrone EP Impurity A
Catalogue No.	VQ-023289
CAS Number	31528-46-8
IUPAC name	(8R,9S,10R,13S,14S,17R)-17-ethynyl-17-hydroxy-13-methyl-1,2,8,9,10,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-3-one
Molecular formula	C₂₀H₂₄O₂
Molecular weight	296.4 g/mol
Exact mass	296.1776
Grade	Reference Standard
HSN code	38229090
InChIKey	SWNFRSGMYREPFG-XGXHKTLJSA-N
SMILES	C[C@]12CC[C@@H]3[C@H]4CCC(=O)C=C4C=C[C@H]3[C@@H]1CC[C@]2(C#C)O
PubChem CID	22216246

Physical properties
Physical form	Solid
LogP (XLogP3)	2.5
H-bond donors / acceptors	1 / 2
TPSA	37.3 Å²
Synonyms	Norethindrone Acetate EP Impurity A, Norethindrone EP Impurity A, 6,7-Dehydro Norethindrone, Norethisterone - Impurity A, 6,7-Dehydro Norethindrone, 6,7-Dehydronorethindrone, 6,7-Didehydronorethisterone, 17-Hydroxy-19-nor-17alpha-pregna-4,6-dien-20-yn-3-one (6,7-Didehydronorethisterone), 17alpha-Ethynyl-17beta-hydroxyestra-4,6-dien-3-one, (17alpha)-17-hydroxy-19-norpregna-4,6-dien-20-yn-3-one, 17-Hydroxy-19-nor-17a-pregna-4,6-dien-20-yn-3-one, 17-Hydroxy-17alpha-19-norpregna-4,6-dien-20-yn-3-one, 17-Hydroxy-19-nor-17alpha-pregna-4,6-dien-20-yn-3-one

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled

Precautionary statements: P233, P260, P264, P270, P271, P284, P301 + P317, P304 + P340, P330, P342 + P316, P403, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Norethindrone EP Impurity A?

The CAS Registry Number of Norethindrone EP Impurity A is 31528-46-8. It is also known as Norethindrone Acetate EP Impurity A, Norethindrone EP Impurity A, 6,7-Dehydro Norethindrone, Norethisterone - Impurity A.

What is the molecular formula and molecular weight of Norethindrone EP Impurity A?

Norethindrone EP Impurity A has the molecular formula C20H24O2 and a molecular weight of 296.4 g/mol. Its IUPAC name is (8R,9S,10R,13S,14S,17R)-17-ethynyl-17-hydroxy-13-methyl-1,2,8,9,10,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-3-one.

What is Norethindrone EP Impurity A used for?

Norethindrone EP Impurity A is supplied as a characterised reference material related to Norethindrone. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Norethindrone EP Impurity A can I order?

We supply Norethindrone EP Impurity A in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Norethindrone EP Impurity A?

Yes. Every lot of Norethindrone EP Impurity A is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Norethindrone EP Impurity A be shipped internationally?

Yes. Norethindrone EP Impurity A is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.