Clobetasone Butyrate EP Impurity C

About Clobetasone Butyrate EP Impurity C

Clobetasone Butyrate EP Impurity C is a pharmacopeial impurity of Clobetasone butyrate carrying the CAS registry number 639817-49-5. With the molecular formula C26H34ClFO5, it has a molar mass of 481.0 g/mol. Common synonyms include Clobetasone Butyrate - Impurity C and 4,5-Dihydroclobetasone Butyrate.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Good laboratory practice and suitable PPE are recommended during handling.

As a characterised impurity of Clobetasone butyrate, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory 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

Related to Clobetasone butyrate

View every impurity, metabolite and intermediate we list for Clobetasone butyrate.

Clobetasone butyrate impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Clobetasone Butyrate EP Impurity C
Catalogue No.	VQ-025031
CAS Number	639817-49-5
IUPAC name	[(8S,9R,10R,13S,14S,16S,17R)-17-(2-chloroacetyl)-9-fluoro-10,13,16-trimethyl-3,11-dioxo-5,6,7,8,12,14,15,16-octahydro-4H-cyclopenta[a]phenanthren-17-yl] butanoate
Molecular formula	C₂₆H₃₄ClFO₅
Molecular weight	481 g/mol
Exact mass	480.2079
Grade	Reference Standard
HSN code	38229090
InChIKey	BOGFRIURQPUFRQ-XMKKTAKQSA-N
SMILES	CCCC(=O)O[C@@]1([C@H](C[C@@H]2[C@@]1(CC(=O)[C@]3([C@H]2CCC4[C@@]3(C=CC(=O)C4)C)F)C)C)C(=O)CCl
PubChem CID	171390012

Physical properties
Physical form	Solid
LogP (XLogP3)	4.2
H-bond donors / acceptors	0 / 6
TPSA	77.5 Å²

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

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

The CAS Registry Number of Clobetasone Butyrate EP Impurity C is 639817-49-5. It is also known as Clobetasone Butyrate - Impurity C, 4,5-Dihydroclobetasone Butyrate.

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

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

What is Clobetasone Butyrate EP Impurity C used for?

Clobetasone Butyrate EP Impurity C 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 C can I order?

We supply Clobetasone Butyrate EP Impurity C 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 C?

Yes. Every lot of Clobetasone Butyrate EP Impurity C 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 C be shipped internationally?

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