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Pharmacopeial Impurities (EP / USP / BP)

Norethindrone EP Impurity D

Reference StandardAvailable on request

Buy Norethindrone EP Impurity D (CAS 68-23-5) from Zemixal: C20H26O2, COA and SDS with every lot, worldwide shipping. Catalogue no. ZX-022308.

Pack sizes
Norethindrone EP Impurity D chemical structure
CAS number68-23-5
FormulaC20H26O2
Molar mass298.4 g/mol
Physical formSolid
HS code38229090
InChIKeyICTXHFFSOAJUMG-SLHNCBLASA-N
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

About Norethindrone EP Impurity D

Zemixal lists Norethindrone EP Impurity D for laboratories that identify, quantify or control Norethindrone and its related substances. Key data (Reference Standard): CAS 68-23-5, formula C20H26O2 and molar mass 298.4 g/mol. It is handled as a solid.

Use cases we see most often

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

Safe handling

It carries the GHS signal word Danger (H350 and H360), so wear gloves and eye protection and work with good ventilation.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. Every shipment includes a certificate of analysis with characterisation data. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Norethindrone

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

Norethindrone 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 Norethindrone EP Impurity D
Product nameNorethindrone EP Impurity D
Catalogue numberZX-022308
CAS number68-23-5
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 formulaC20H26O2
Molar mass298.4 g/mol
Exact mass298.1933
GradeReference Standard
Physical formSolid
XLogP32.1
H-bond donors / acceptors1 / 2
Topological polar surface area37.3 Ų
HS code38229090
InChIKeyICTXHFFSOAJUMG-SLHNCBLASA-N
SMILESC[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@]2(C#C)O)CCC4=C3CCC(=O)C4
PubChem CID6231
SynonymsNorethynodrel, 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-

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

Safety and GHS hazards

GHS08 Health hazard
Health hazard

Signal word Danger

  • H350May cause cancer
  • H360May damage fertility or the unborn child

Precautionary statements P203, P280, P318, 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 Norethindrone EP Impurity D
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

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

Questions about Norethindrone EP Impurity D

Which CAS number identifies Norethindrone EP Impurity D?
Norethindrone EP Impurity D is registered under CAS 68-23-5. You may also see it listed as Norethynodrel, Norethindrone EP Impurity D, Δ-5(10)-Norethindrone Acetate, Norethisterone - Impurity D. Our catalogue number for this item is ZX-022308.
What are the formula and molar mass of Norethindrone EP Impurity D?
For Norethindrone EP Impurity D, its formula is C20H26O2 and its molar mass is 298.4 g/mol. The systematic (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. InChIKey ICTXHFFSOAJUMG-SLHNCBLASA-N lets you match it in any structure database.
How is Norethindrone EP Impurity D used in pharmaceutical QC?
Norethindrone EP Impurity D is a characterised reference material linked to Norethindrone. 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 Norethindrone EP Impurity D?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Norethindrone EP Impurity D?
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 Norethindrone EP Impurity D to my country?
Yes. Because Norethindrone EP Impurity D 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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