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Pharmacopeial Impurities (EP / USP / BP)

Mesterolone EP Impurity B

Reference StandardAvailable on request

Buy Mesterolone EP Impurity B (CAS 4011-44-3) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-030516.

Pack sizes
Mesterolone EP Impurity B chemical structure
CAS number4011-44-3
FormulaC20H34O2
Molar mass306.5 g/mol
Physical formSolid
HS code38229090
InChIKeyCYBREHOEFDYISP-AYWFNIBGSA-N
IUPAC name(1S,3S,5S,8R,9S,10S,13S,14S,17S)-1,10,13-trimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-3,17-diol

About Mesterolone EP Impurity B

Mesterolone EP Impurity B is supplied by Zemixal as a characterised reference material for Mesterolone analysis. For your records (Reference Standard), the material is defined by CAS 4011-44-3, formula C20H34O2 and molar mass 306.5 g/mol. It is handled as a solid.

Typical applications

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

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. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Mesterolone

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

Mesterolone 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 Mesterolone EP Impurity B
Product nameMesterolone EP Impurity B
Catalogue numberZX-030516
CAS number4011-44-3
IUPAC name(1S,3S,5S,8R,9S,10S,13S,14S,17S)-1,10,13-trimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-3,17-diol
Molecular formulaC20H34O2
Molar mass306.5 g/mol
Exact mass306.2559
GradeReference Standard
Physical formSolid
XLogP34.6
H-bond donors / acceptors2 / 2
Topological polar surface area40.5 Ų
HS code38229090
InChIKeyCYBREHOEFDYISP-AYWFNIBGSA-N
SMILESC[C@H]1C[C@@H](C[C@H]2[C@]1([C@H]3CC[C@]4([C@H]([C@@H]3CC2)CC[C@@H]4O)C)C)O
PubChem CID102324219
SynonymsMesterolone - Impurity B, 1alpha-methyl-5alpha-androstane-3beta,17beta-diol, (1alpha,3beta,5alpha,17beta)-1-methylandrostane-3,17-diol, Androstane-3,17-diol, 1-methyl-, (1alpha,3beta,5alpha,17beta)-, Mesterolone impurity B, (1a,3b,5a,17b)-1-Methylandrostane-3,17-diol

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

Safety and GHS hazards

No GHS classification is on file for this item. Handle it as an unknown laboratory chemical and request the SDS with your quotation.

Pack sizes

Pack sizes of Mesterolone EP Impurity B
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 Mesterolone EP Impurity B

Which CAS number identifies Mesterolone EP Impurity B?
Mesterolone EP Impurity B is registered under CAS 4011-44-3. You may also see it listed as Mesterolone - Impurity B, 1alpha-methyl-5alpha-androstane-3beta,17beta-diol, (1alpha,3beta,5alpha,17beta)-1-methylandrostane-3,17-diol. Our catalogue number for this item is ZX-030516.
What are the formula and molar mass of Mesterolone EP Impurity B?
For Mesterolone EP Impurity B, its formula is C20H34O2 and its molar mass is 306.5 g/mol. The systematic (IUPAC) name is (1S,3S,5S,8R,9S,10S,13S,14S,17S)-1,10,13-trimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-3,17-diol. InChIKey CYBREHOEFDYISP-AYWFNIBGSA-N lets you match it in any structure database.
How is Mesterolone EP Impurity B used in pharmaceutical QC?
Mesterolone EP Impurity B is a characterised reference material linked to Mesterolone. 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 Mesterolone EP Impurity B?
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 Mesterolone 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 Mesterolone EP Impurity B to my country?
Yes. Mesterolone EP Impurity B ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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