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Pharmacopeial Impurities (EP / USP / BP)

Betamethasone Valerate EP Impurity B

Reference StandardAvailable on request

Buy Betamethasone Valerate EP Impurity B (CAS 1879-77-2) from Zemixal. Request a quote with price, lead time and documents.

Pack sizes
Betamethasone Valerate EP Impurity B chemical structure
CAS number1879-77-2
FormulaC22H29FO4
Molar mass376.5 g/mol
Physical formSolid
HS code38229090
InChIKeyIKGBPSZWCRRUQS-DTAAKRQUSA-N
IUPAC name(8S,9R,10S,11S,13S,14S,16S,17R)-17-acetyl-9-fluoro-11,17-dihydroxy-10,13,16-trimethyl-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-3-one

About Betamethasone Valerate EP Impurity B

Zemixal lists Betamethasone Valerate EP Impurity B for laboratories that identify, quantify or control Betamethasone and its related substances. Key data (Reference Standard): CAS 1879-77-2, formula C22H29FO4 and molar mass 376.5 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

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

Reference standards for Betamethasone

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

Betamethasone 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 Betamethasone Valerate EP Impurity B
Product nameBetamethasone Valerate EP Impurity B
Catalogue numberZX-019995
CAS number1879-77-2
IUPAC name(8S,9R,10S,11S,13S,14S,16S,17R)-17-acetyl-9-fluoro-11,17-dihydroxy-10,13,16-trimethyl-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-3-one
Molecular formulaC22H29FO4
Molar mass376.5 g/mol
Exact mass376.205
GradeReference Standard
Physical formSolid
XLogP32.4
H-bond donors / acceptors2 / 5
Topological polar surface area74.6 Ų
HS code38229090
InChIKeyIKGBPSZWCRRUQS-DTAAKRQUSA-N
SMILESC[C@H]1C[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@@]4([C@]3([C@H](C[C@@]2([C@]1(C(=O)C)O)C)O)F)C
PubChem CID71106
SynonymsBetamethasone Valerate - Impurity B, Doxibetasol, GR 2/443 [as propionate], 9-Fluoro-11beta,17-dihydroxy-16beta-methylpregna-1,4-diene-3,20-dione, Pregna-1,4-diene-3,20-dione, 9-fluoro-11,17-dihydroxy-16-methyl-, (11.beta.,16.beta.)-, Pregna-1,4-diene-3,20-dione, 9-fluoro-11,17-dihydroxy-16-methyl-, (11beta,16beta)-, 21-deoxy-betamethasone, (11beta,16beta)-9-fluoro-11,17-dihydroxy-16-methylpregna-1,4-diene-3,20-dione, (11, A,16, A)-9-Fluoro-11,17-dihydroxy-16-methylpregna-1,4-diene-3,20-dione

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 Betamethasone Valerate 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 Betamethasone Valerate EP Impurity B

Which CAS number identifies Betamethasone Valerate EP Impurity B?
Betamethasone Valerate EP Impurity B is registered under CAS 1879-77-2. You may also see it listed as Betamethasone Valerate - Impurity B, Doxibetasol, GR 2/443 [as propionate]. Our catalogue number for this item is ZX-019995.
What are the formula and molar mass of Betamethasone Valerate EP Impurity B?
For Betamethasone Valerate EP Impurity B, its formula is C22H29FO4 and its molar mass is 376.5 g/mol. The systematic (IUPAC) name is (8S,9R,10S,11S,13S,14S,16S,17R)-17-acetyl-9-fluoro-11,17-dihydroxy-10,13,16-trimethyl-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-3-one. InChIKey IKGBPSZWCRRUQS-DTAAKRQUSA-N lets you match it in any structure database.
How is Betamethasone Valerate EP Impurity B used in pharmaceutical QC?
Betamethasone Valerate EP Impurity B is a characterised reference material linked to Betamethasone. 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 Betamethasone Valerate 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 Betamethasone Valerate 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 Betamethasone Valerate EP Impurity B to my country?
Yes. Betamethasone Valerate 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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