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Pharmacopeial Impurities (EP / USP / BP)

Clobetasone Butyrate EP Impurity I

Reference StandardAvailable on request

Order Clobetasone Butyrate EP Impurity I (CAS 639817-47-3) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery.

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Clobetasone Butyrate EP Impurity I chemical structure
CAS number639817-47-3
FormulaC26H32ClFO5
Molar mass479 g/mol
Physical formSolid
HS code38229090
InChIKeyKJKUAXYCSXHEGA-AVVSTMBFSA-N
IUPAC name[(8S,9R,10S,13S,14S,16S,17R)-17-(2-chloroacetyl)-9-fluoro-10,13,16-trimethyl-3,11-dioxo-7,8,12,14,15,16-hexahydro-6H-cyclopenta[a]phenanthren-17-yl] 2-methylpropanoate

About Clobetasone Butyrate EP Impurity I

Clobetasone Butyrate EP Impurity I belongs to the Clobetasone butyrate reference-standard family in the Zemixal catalogue. Identity at a glance (Reference Standard): CAS 639817-47-3, formula C26H32ClFO5 and molar mass 479 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

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 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 Clobetasone butyrate

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

Clobetasone butyrate 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 Clobetasone Butyrate EP Impurity I
Product nameClobetasone Butyrate EP Impurity I
Catalogue numberZX-024007
CAS number639817-47-3
IUPAC name[(8S,9R,10S,13S,14S,16S,17R)-17-(2-chloroacetyl)-9-fluoro-10,13,16-trimethyl-3,11-dioxo-7,8,12,14,15,16-hexahydro-6H-cyclopenta[a]phenanthren-17-yl] 2-methylpropanoate
Molecular formulaC26H32ClFO5
Molar mass479 g/mol
Exact mass478.1922
GradeReference Standard
Physical formSolid
XLogP34
H-bond donors / acceptors0 / 6
Topological polar surface area77.5 Ų
HS code38229090
InChIKeyKJKUAXYCSXHEGA-AVVSTMBFSA-N
SMILESC[C@H]1C[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@@]4([C@]3(C(=O)C[C@@]2([C@]1(C(=O)CCl)OC(=O)C(C)C)C)F)C
PubChem CID156613988
SynonymsClobetasone Butyrate - Impurity I, 17-o-Isobutyryl clobetasone, 21-Chloro-9-fluoro-16beta-methyl-3,11,20-trioxopregna-1,4-dien-17-yl 2-methylpropanoate

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 Clobetasone Butyrate EP Impurity I
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 Clobetasone Butyrate EP Impurity I

Which CAS number identifies Clobetasone Butyrate EP Impurity I?
Clobetasone Butyrate EP Impurity I is registered under CAS 639817-47-3. You may also see it listed as Clobetasone Butyrate - Impurity I, 17-o-Isobutyryl clobetasone, 21-Chloro-9-fluoro-16beta-methyl-3,11,20-trioxopregna-1,4-dien-17-yl 2-methylpropanoate. Our catalogue number for this item is ZX-024007.
What are the formula and molar mass of Clobetasone Butyrate EP Impurity I?
For Clobetasone Butyrate EP Impurity I, its formula is C26H32ClFO5 and its molar mass is 479 g/mol. InChIKey KJKUAXYCSXHEGA-AVVSTMBFSA-N lets you match it in any structure database.
How is Clobetasone Butyrate EP Impurity I used in pharmaceutical QC?
Clobetasone Butyrate EP Impurity I is a characterised reference material linked to Clobetasone butyrate. 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 Clobetasone Butyrate EP Impurity I?
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 Clobetasone Butyrate EP Impurity I?
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 Clobetasone Butyrate EP Impurity I to my country?
Yes. Clobetasone Butyrate EP Impurity I ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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