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Pharmacopeial Impurities (EP / USP / BP)

Testosterone EP Impurity B

Reference StandardIn stock

Order Testosterone EP Impurity B (CAS 972-46-3) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-006026.

Pack sizes
Testosterone EP Impurity B chemical structure
CAS number972-46-3
FormulaC21H30O2
Molar mass314.5 g/mol
Physical formSolid
HS code38229090
Purity99.33%
InChIKeyPAOWPNQOTVTCAF-OEUJLIAZSA-N
IUPAC name(8R,9S,10R,13S,14S)-3-ethoxy-10,13-dimethyl-1,2,7,8,9,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-17-one

About Testosterone EP Impurity B

Analytical teams working on Testosterone use Testosterone EP Impurity B as a qualified comparison standard. For your records (Reference Standard), the material is defined by CAS 972-46-3, formula C21H30O2 and molar mass 314.5 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: H301 and H361). Our SDS lists exposure controls and first-aid measures.

Standard pack sizes are 10 mg, 25 mg, 50 mg, 100 mg and 250 mg, and custom quantities are quoted on request. 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 Testosterone

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

Testosterone 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 Testosterone EP Impurity B
Product nameTestosterone EP Impurity B
Catalogue numberZX-006026
CAS number972-46-3
IUPAC name(8R,9S,10R,13S,14S)-3-ethoxy-10,13-dimethyl-1,2,7,8,9,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-17-one
Molecular formulaC21H30O2
Molar mass314.5 g/mol
Exact mass314.2246
GradeReference Standard
Purity / assay99.33%
Physical formSolid
XLogP34.3
H-bond donors / acceptors0 / 2
Topological polar surface area26.3 Ų
HS code38229090
InChIKeyPAOWPNQOTVTCAF-OEUJLIAZSA-N
SMILESCCOC1=CC2=CC[C@H]3[C@@H]4CCC(=O)[C@]4(CC[C@@H]3[C@]2(CC1)C)C
PubChem CID10358291
Synonyms3-Ethoxyandrosta-3,5-dien-17-one, Androst-4-ene-3,17-dione 3-ethyl enol ether, Androstenedione Ethylenolether, Androsta-3,5-dien-17-one, 3-ethoxy-, Testosterone impurity B, 3-Ethoxy-androsta-3,5-dien-17-one, 3-Ethoxyandrosta-3,5-dien-17-one (Androstenedione Ethylenolether), 3-ethoxyandrosta-3,5-diene-17-one, Androsta-3,5-dien-17-one,3-ethoxy-, 3-ethoxyandrosta-3,5(6)-dien-17-one

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

Safety and GHS hazards

GHS06 Acute toxicity
Acute toxicity
GHS08 Health hazard
Health hazard

Signal word Danger

  • H301Toxic if swallowed
  • H361Suspected of damaging fertility or the unborn child

Precautionary statements P203, P264, P270, P280, P301 + P316, P318, P321, P330, 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 Testosterone EP Impurity B
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request
250 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 Testosterone EP Impurity B

Which CAS number identifies Testosterone EP Impurity B?
Testosterone EP Impurity B is registered under CAS 972-46-3. You may also see it listed as 3-Ethoxyandrosta-3,5-dien-17-one, Androst-4-ene-3,17-dione 3-ethyl enol ether, Androstenedione Ethylenolether. Our catalogue number for this item is ZX-006026.
What are the formula and molar mass of Testosterone EP Impurity B?
For Testosterone EP Impurity B, its formula is C21H30O2 and its molar mass is 314.5 g/mol. The systematic (IUPAC) name is (8R,9S,10R,13S,14S)-3-ethoxy-10,13-dimethyl-1,2,7,8,9,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-17-one. InChIKey PAOWPNQOTVTCAF-OEUJLIAZSA-N lets you match it in any structure database.
How is Testosterone EP Impurity B used in pharmaceutical QC?
Testosterone EP Impurity B is a characterised reference material linked to Testosterone. 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 Testosterone EP Impurity B?
This listing is Reference Standard grade with 99.33% purity. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg, 250 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Testosterone 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 Testosterone EP Impurity B to my country?
Yes. Because Testosterone 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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