Firocoxib Lactone

About Firocoxib Lactone

Firocoxib Lactone is a process intermediate or related compound of Firocoxib carrying the CAS registry number 256339-21-6. The compound has the formula C17H20O3S, corresponding to a molecular weight of 304.41 g/mol.

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. Handle it with standard laboratory precautions and appropriate personal protective equipment.

Process chemists and analysts use it when developing synthetic routes to Firocoxib, tracking process-related impurities and validating analytical methods. It is used across pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Firocoxib Lactone is dispatched with a Certificate of Analysis (COA) to destinations worldwide. This item is currently in stock for prompt dispatch.

Typical applications

API route development
Impurity fate & purge studies
Analytical method development

Industries

Related to Firocoxib

View every impurity, metabolite and intermediate we list for Firocoxib.

Firocoxib impurities

Specifications & identifiers

Chemical identifiers
Product name	Firocoxib Lactone
Catalogue No.	VQ-013437
CAS Number	256339-21-6
Molecular formula	C₁₇H₂₀O₃S
Molecular weight	304.41 g/mol
Grade	Reference Standard

Physical properties
Physical form	Solid

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 Firocoxib Lactone?

The CAS Registry Number of Firocoxib Lactone is 256339-21-6. It is also known as 3-(Cyclopropylmethoxy)-5,5-dimethyl-4-[4-(methylthio)phenyl]-2(5H)-furanone, 3-(Cyclopropylmethoxy)-5,5-dimethyl-4-(4-(methylthio)phenyl)furan-2(5H)-one.

What is the molecular formula and molecular weight of Firocoxib Lactone?

Firocoxib Lactone has the molecular formula C17H20O3S and a molecular weight of 304.41 g/mol.

What is Firocoxib Lactone used for?

Firocoxib Lactone is supplied as a characterised reference material related to Firocoxib. 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 Firocoxib Lactone can I order?

We supply Firocoxib Lactone in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg, 250 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Firocoxib Lactone?

Yes. Every lot of Firocoxib Lactone 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 Firocoxib Lactone be shipped internationally?

Yes. We export Firocoxib Lactone worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.