Norethindrone EP Impurity D

Name: Norethindrone EP Impurity D
Brand: Vaqora Chemicals
SKU: VQ-023286

About Norethindrone EP Impurity D

Norethindrone EP Impurity D (CAS 68-23-5) is a pharmacopeial impurity of Norethindrone offered by Vaqora Chemicals. With the molecular formula C20H26O2, it has a molar mass of 298.4 g/mol. Alternative names: Norethynodrel and Norethisterone - Impurity D.

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. It carries the GHS signal word “Danger” with 2 hazard statements. Review the Safety Data Sheet before use.

As a characterised impurity of Norethindrone, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Norethindrone EP Impurity D 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 D
Catalogue No.	VQ-023286
CAS Number	68-23-5
IUPAC name	(8R,9S,13S,14S,17R)-17-ethynyl-17-hydroxy-13-methyl-1,2,4,6,7,8,9,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-3-one
Molecular formula	C₂₀H₂₆O₂
Molecular weight	298.4 g/mol
Exact mass	298.1933
Grade	Reference Standard
HSN code	38229090
InChIKey	ICTXHFFSOAJUMG-SLHNCBLASA-N
SMILES	C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@]2(C#C)O)CCC4=C3CCC(=O)C4
PubChem CID	6231

Physical properties
Physical form	Solid
LogP (XLogP3)	2.1
H-bond donors / acceptors	1 / 2
TPSA	37.3 Å²
Synonyms	Norethynodrel, Norethindrone EP Impurity D, Δ-5(10)-Norethindrone Acetate, Norethisterone - Impurity D, Lynestrol, 19-Norethynodrel, 19-Nor-ethinyl-5,10-testosterone, 17-alpha-Ethynyl-5(10)-estren-17-ol-3-one, 19-Norpregn-5(10)-en-20-yn-3-one, 17-hydroxy-, (17alpha)-, 17-alpha-Ethynyl-estr-5(10)-en-3-on-17-beta-ol, 17-beta-Hydroxy-17-alpha-ethinyl-5(10)-estren-3-one, (17-alpha)-17-Hydroxy-19-norpregn-5(10)-en-20-yn-3-one, 19-Nor-17alpha-pregn-5(10)-en-20-yn-3-one, 17-hydroxy-

Safety & hazard information (GHS)

Health hazard

Signal word: Danger

Hazard statements

H350May cause cancer
H360May damage fertility or the unborn child

Precautionary statements: P203, P280, P318, P405, 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 D?

The CAS Registry Number of Norethindrone EP Impurity D is 68-23-5. It is also known as Norethynodrel, Norethindrone EP Impurity D, Δ-5(10)-Norethindrone Acetate, Norethisterone - Impurity D.

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

Norethindrone EP Impurity D has the molecular formula C20H26O2 and a molecular weight of 298.4 g/mol. Its IUPAC name is (8R,9S,13S,14S,17R)-17-ethynyl-17-hydroxy-13-methyl-1,2,4,6,7,8,9,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-3-one.

What is Norethindrone EP Impurity D used for?

Norethindrone EP Impurity D 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 D can I order?

We supply Norethindrone EP Impurity D 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 D?

Yes. Every lot of Norethindrone EP Impurity D 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 D be shipped internationally?

Yes. Norethindrone EP Impurity D 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.