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Pharmacopeial Impurities (EP / USP / BP)

Norethisterone EP Impurity B

Reference StandardIn stock

Norethisterone EP Impurity B (CAS 734-32-7) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery. Exported from India with full paperwork.

Pack sizes
Norethisterone EP Impurity B chemical structure
CAS number734-32-7
FormulaC18H24O2
Molar mass272.4 g/mol
Physical formSolid
HS code38229090
Purity95.12%
InChIKeyJRIZOGLBRPZBLQ-QXUSFIETSA-N
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

About Norethisterone EP Impurity B

Norethisterone EP Impurity B is supplied by Zemixal as a characterised reference material for Norethisterone analysis. Key data (Reference Standard): CAS 734-32-7, formula C18H24O2 and molar mass 272.4 g/mol. It is handled as a solid.

Where it is used

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

Handling and storage

Hazard communication follows GHS (Danger: H302, H312, H351 and H360). Our SDS lists exposure controls and first-aid measures.

Available as 10 mg, 25 mg, 50 mg, 100 mg and 250 mg. Larger or split packs can be arranged. Every shipment includes a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Norethisterone

See every impurity, metabolite and related compound we list for this API.

Norethisterone standards

Typical uses

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

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Norethisterone EP Impurity B
Product nameNorethisterone EP Impurity B
Catalogue numberZX-005858
CAS number734-32-7
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 formulaC18H24O2
Molar mass272.4 g/mol
Exact mass272.1776
GradeReference Standard
Purity / assay95.12%
Physical formSolid
XLogP32.5
H-bond donors / acceptors0 / 2
Topological polar surface area34.1 Ų
HS code38229090
InChIKeyJRIZOGLBRPZBLQ-QXUSFIETSA-N
SMILESC[C@]12CC[C@H]3[C@H]([C@@H]1CCC2=O)CCC4=CC(=O)CC[C@H]34
PubChem CID92834
SynonymsNorandrostenedione, 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

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful
GHS08 Health hazard
Health hazard
GHS09 Hazardous to the environment
Hazardous to the environment

Signal word Danger

  • 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 summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Norethisterone EP Impurity B
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request
250 mgQuoted on request
500 mgQuoted on request
1 gQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Norethisterone EP Impurity B

Which CAS number identifies Norethisterone EP Impurity B?
Norethisterone EP Impurity B is registered under CAS 734-32-7. You may also see it listed as Norandrostenedione, Estr-4-ene-3,17-dione, 19-Nor-4-androstenedione. Our catalogue number for this item is ZX-005858.
What are the formula and molar mass of Norethisterone EP Impurity B?
For Norethisterone EP Impurity B, its formula is C18H24O2 and its molar mass is 272.4 g/mol. The systematic (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. InChIKey JRIZOGLBRPZBLQ-QXUSFIETSA-N lets you match it in any structure database.
How is Norethisterone EP Impurity B used in pharmaceutical QC?
Norethisterone EP Impurity B is a characterised reference material linked to Norethisterone. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Norethisterone EP Impurity B?
This listing is Reference Standard grade with 95.12% purity. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg, 250 mg, 500 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Norethisterone EP Impurity B?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Norethisterone EP Impurity B to my country?
Yes. Because Norethisterone EP Impurity B is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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