Norethisterone EP Impurity B

Name: Norethisterone EP Impurity B
Brand: Vaqora Chemicals
SKU: VQ-006549

About Norethisterone EP Impurity B

Vaqora Chemicals supplies Norethisterone EP Impurity B, a pharmacopeial impurity of Norethisterone registered under CAS number 734-32-7 with a typical assay of 95.12%. Formula C18H24O2, molecular weight 272.4 g/mol. The IUPAC name is (8R,9S,10R,13S,14S)-13-methyl-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthrene-3,17-dione. Alternative names: Norandrostenedione and Estr-4-ene-3,17-dione.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

This Norethisterone impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Norethisterone EP Impurity B in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide. This item is currently in stock for prompt dispatch.

Typical applications

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

Industries

Related to Norethisterone

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

Norethisterone impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Norethisterone EP Impurity B
Catalogue No.	VQ-006549
CAS Number	734-32-7
IUPAC name	(8R,9S,10R,13S,14S)-13-methyl-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthrene-3,17-dione
Molecular formula	C₁₈H₂₄O₂
Molecular weight	272.4 g/mol
Exact mass	272.1776
Grade	Reference Standard
Purity / assay	95.12%
HSN code	38229090
InChIKey	JRIZOGLBRPZBLQ-QXUSFIETSA-N
SMILES	C[C@]12CC[C@H]3[C@H]([C@@H]1CCC2=O)CCC4=CC(=O)CC[C@H]34
PubChem CID	92834

Physical properties
Physical form	Solid
LogP (XLogP3)	2.5
H-bond donors / acceptors	0 / 2
TPSA	34.1 Å²
Synonyms	Norandrostenedione, Estr-4-ene-3,17-dione, 19-Nor-4-androstenedione, 19-Norandrost-4-ene-3,17-dione, 19-Norandrostenedione, 3,17-Dioxo-19-norandrost-4-ene, Nordione, 19-nor-4-androstene-3,17-dione, delta4-Estrene-3,17-dione, delta,4-Estrene-3,17-dione, (+)-Estr-4-ene-3,17-dione, 19-nor-A-dione

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Environmental hazard

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H312Harmful in contact with skin
H351Suspected of causing cancer
H360May damage fertility or the unborn child
H361Suspected of damaging fertility or the unborn child
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H411Toxic to aquatic life with long lasting effects

Precautionary statements: P203, P264, P270, P273, P280, P301 + P317, P302 + P352, P317, P318, P321, P330, P362 + P364, P391, 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 Norethisterone EP Impurity B?

The CAS Registry Number of Norethisterone EP Impurity B is 734-32-7. It is also known as Norandrostenedione, Estr-4-ene-3,17-dione, 19-Nor-4-androstenedione.

What is the molecular formula and molecular weight of Norethisterone EP Impurity B?

Norethisterone EP Impurity B has the molecular formula C18H24O2 and a molecular weight of 272.4 g/mol. Its IUPAC name is (8R,9S,10R,13S,14S)-13-methyl-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthrene-3,17-dione.

What is Norethisterone EP Impurity B used for?

Norethisterone EP Impurity B is supplied as a characterised reference material related to Norethisterone. 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 Norethisterone EP Impurity B can I order?

We supply Norethisterone EP Impurity B in Reference Standard (95.12%) grade, in 10 mg, 25 mg, 50 mg, 100 mg, 250 mg, 500 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Norethisterone EP Impurity B?

Yes. Every lot of Norethisterone EP Impurity B 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 Norethisterone EP Impurity B be shipped internationally?

Yes. Norethisterone EP Impurity B 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.