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Pharmacopeial Impurities (EP / USP / BP)

Norethindrone EP Impurity H

Reference StandardAvailable on request

Buy Norethindrone EP Impurity H (CAS 51724-44-8) from Zemixal: C20H26O3, COA and SDS with every lot, worldwide shipping.

Pack sizes
Norethindrone EP Impurity H chemical structure
CAS number51724-44-8
FormulaC20H26O3
Molar mass314.4 g/mol
Physical formSolid
HS code38229090
InChIKeyRONQVEAZNZIVHW-BHJGDWCPSA-N
IUPAC name(6R,8R,9S,10R,13S,14S,17R)-17-ethynyl-6,17-dihydroxy-13-methyl-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-3-one

About Norethindrone EP Impurity H

Norethindrone EP Impurity H is supplied by Zemixal as a characterised reference material for Norethindrone analysis. Identity at a glance (Reference Standard): CAS 51724-44-8, formula C20H26O3 and molar mass 314.4 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

Classified under GHS with signal word Danger and hazard statements H302 and H334. Read the SDS before first use.

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

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 H
Product nameNorethindrone EP Impurity H
Catalogue numberZX-022313
CAS number51724-44-8
IUPAC name(6R,8R,9S,10R,13S,14S,17R)-17-ethynyl-6,17-dihydroxy-13-methyl-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-3-one
Molecular formulaC20H26O3
Molar mass314.4 g/mol
Exact mass314.1882
GradeReference Standard
Physical formSolid
XLogP31.7
H-bond donors / acceptors2 / 3
Topological polar surface area57.5 Ų
HS code38229090
InChIKeyRONQVEAZNZIVHW-BHJGDWCPSA-N
SMILESC[C@]12CC[C@@H]3[C@H]4CCC(=O)C=C4[C@@H](C[C@H]3[C@@H]1CC[C@]2(C#C)O)O
PubChem CID71748798
SynonymsNorethisterone - Impurity H, Norethindrone EP Impurity H, 6β-Hydroxy Norethindrone, 6beta-Hydroxynorethindrone, 6beta-hydroxynorethisterone, (6beta,17alpha)-6,17-Dihydroxy-19-norpregn-4-en-20-yn-3-one, 6beta,17-Dihydroxy-19-nor-17alpha-pregn-4-en-20-yn-3-one, 19-Norpregn-4-en-20-yn-3-one, 6,17-dihydroxy-, (6beta,17alpha)-, Norethisterone impurity H, 6b-Hydroxy Norethindrone, 6beta-Hydroxy Norethindrone, 6beta,17-Dihydroxy-19-nor-17alpha-pregn-4-en-20-yn-3-one (6beta-Hydroxynorethisterone), 6beta,17-Dihydroxy-17alpha-19-norpregn-4-en-20-yn-3-one

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

Signal word Danger

  • 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 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 H
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 H

Which CAS number identifies Norethindrone EP Impurity H?
Norethindrone EP Impurity H is registered under CAS 51724-44-8. You may also see it listed as Norethisterone - Impurity H, Norethindrone EP Impurity H, 6β-Hydroxy Norethindrone, 6beta-Hydroxynorethindrone. Our catalogue number for this item is ZX-022313.
What are the formula and molar mass of Norethindrone EP Impurity H?
For Norethindrone EP Impurity H, its formula is C20H26O3 and its molar mass is 314.4 g/mol. The systematic (IUPAC) name is (6R,8R,9S,10R,13S,14S,17R)-17-ethynyl-6,17-dihydroxy-13-methyl-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-3-one. InChIKey RONQVEAZNZIVHW-BHJGDWCPSA-N lets you match it in any structure database.
How is Norethindrone EP Impurity H used in pharmaceutical QC?
Norethindrone EP Impurity H 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 H?
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 H?
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 H to my country?
Yes. Because Norethindrone EP Impurity H 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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