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Pharmacopeial Impurities (EP / USP / BP)Reference StandardAvailable on request

Clobetasone Butyrate EP Impurity E

Synonyms: Clobetasone Butyrate - Impurity E · 1,2-Dihydroclobetasone butyrate · 21-Chloro-9-fluoro-16beta-methyl-3,11,20-trioxopregn-4-en-17-yl butanoate · Pregn-4-ene-3,11,20-trione, 21-chloro-9-fluoro-16-methyl-17-(1-oxobutoxy)-, (16beta)-

CAS No.639817-48-4
FormulaC26H34ClFO5
Mol. weight481.00
Catalogue No.VQ-025033
PurityReference Standard
HSN38229090

Clobetasone Butyrate EP Impurity E (CAS 639817-48-4) – Clobetasone butyrate impurity standard. C26H34ClFO5, MW 481.0. Vaqora Chemicals: COA, global shipping.

Pack sizesPrice on quotation · bulk available
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25 mg
50 mg
100 mg
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16-section GHS SDS
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About Clobetasone Butyrate EP Impurity E

Vaqora Chemicals supplies Clobetasone Butyrate EP Impurity E, a pharmacopeial impurity of Clobetasone butyrate registered under CAS number 639817-48-4. Formula C26H34ClFO5, molecular weight 481.0 g/mol. It is also known as Clobetasone Butyrate - Impurity E or 1,2-Dihydroclobetasone butyrate.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

This Clobetasone butyrate impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

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

Industries

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Specifications & identifiers

Chemical identifiers
Product nameClobetasone Butyrate EP Impurity E
Catalogue No.VQ-025033
CAS Number639817-48-4
IUPAC name[(8S,9R,10S,13S,14S,16S,17R)-17-(2-chloroacetyl)-9-fluoro-10,13,16-trimethyl-3,11-dioxo-2,6,7,8,12,14,15,16-octahydro-1H-cyclopenta[a]phenanthren-17-yl] butanoate
Molecular formulaC26H34ClFO5
Molecular weight481 g/mol
Exact mass480.2079
GradeReference Standard
HSN code38229090
InChIKeyAPQSIYKUWQYHMT-AVVSTMBFSA-N
SMILESCCCC(=O)O[C@@]1([C@H](C[C@@H]2[C@@]1(CC(=O)[C@]3([C@H]2CCC4=CC(=O)CC[C@@]43C)F)C)C)C(=O)CCl
PubChem CID156613686
Physical properties
Physical formSolid
LogP (XLogP3)3.6
H-bond donors / acceptors0 / 6
TPSA77.5 Ų

Documents

Frequently asked questions

What is the CAS number of Clobetasone Butyrate EP Impurity E?

The CAS Registry Number of Clobetasone Butyrate EP Impurity E is 639817-48-4. It is also known as Clobetasone Butyrate - Impurity E, 1,2-Dihydroclobetasone butyrate, 21-Chloro-9-fluoro-16beta-methyl-3,11,20-trioxopregn-4-en-17-yl butanoate.

What is the molecular formula and molecular weight of Clobetasone Butyrate EP Impurity E?

Clobetasone Butyrate EP Impurity E has the molecular formula C26H34ClFO5 and a molecular weight of 481 g/mol.

What is Clobetasone Butyrate EP Impurity E used for?

Clobetasone Butyrate EP Impurity E is supplied as a characterised reference material related to Clobetasone butyrate. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Clobetasone Butyrate EP Impurity E can I order?

We supply Clobetasone Butyrate EP Impurity E in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Clobetasone Butyrate EP Impurity E?

Yes. Every lot of Clobetasone Butyrate EP Impurity E is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Clobetasone Butyrate EP Impurity E be shipped internationally?

Yes. We export Clobetasone Butyrate EP Impurity E worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.

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Why buyers choose Vaqora

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  • IATA / IMDG dangerous-goods packing
  • EXW, FOB, CIF, DAP Incoterms
  • Custom synthesis & sourcing
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