5-Chloro-2-methylthieno[2,3-d]isothiazol-3(2H… 1333316-61-2

Name: 5-Chloro-2-methylthieno[2,3-d]isothiazol-3(2H)-one 1,1-dioxide
Brand: Vaqora Chemicals
SKU: VQ-034123

About 5-Chloro-2-methylthieno[2,3-d]isothiazol-3(2H)-one 1,1-dioxide

Listed under CAS 1333316-61-2, 5-Chloro-2-methylthieno[2,3-d]isothiazol-3(2H)-one 1,1-dioxide is an impurity of Tenoxicam available from Vaqora Chemicals. With the molecular formula C6H4ClNO3S2, it has a molar mass of 237.7 g/mol. Its systematic (IUPAC) name is 5-chloro-2-methyl-1,1-dioxothieno[2,3-d][1,2]thiazol-3-one.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Good laboratory practice and suitable PPE are recommended during handling.

As a characterised impurity of Tenoxicam, 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.

Vaqora Chemicals supplies 5-Chloro-2-methylthieno[2,3-d]isothiazol-3(2H)-one 1,1-dioxide in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Tenoxicam

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

Tenoxicam impurities

Specifications & identifiers

Chemical identifiers
Product name	5-Chloro-2-methylthieno[2,3-d]isothiazol-3(2H)-one 1,1-dioxide
Catalogue No.	VQ-034123
CAS Number	1333316-61-2
IUPAC name	5-chloro-2-methyl-1,1-dioxothieno[2,3-d][1,2]thiazol-3-one
Molecular formula	C₆H₄ClNO₃S₂
Molecular weight	237.7 g/mol
Exact mass	236.9321
Grade	Reference Standard
HSN code	38229090
InChIKey	TZBWIXZWPHZTEG-UHFFFAOYSA-N
SMILES	CN1C(=O)C2=C(S1(=O)=O)C=C(S2)Cl
PubChem CID	129842214

Physical properties
Physical form	Solid
LogP (XLogP3)	1.6
H-bond donors / acceptors	0 / 4
TPSA	91.1 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 5-Chloro-2-methylthieno[2,3-d]isothiazol-3(2H)-one 1,1-dioxide?

The CAS Registry Number of 5-Chloro-2-methylthieno[2,3-d]isothiazol-3(2H)-one 1,1-dioxide is 1333316-61-2. It is also known as 5-Chloro-2-methyl-thieno[2,3-d]-isothiazolidin-3-one-1,1-dioxide, 5-chloro-N-methyl-3-oxothieno[2,3-d]-1,2-thiazole-1,1-dioxide.

What is the molecular formula and molecular weight of 5-Chloro-2-methylthieno[2,3-d]isothiazol-3(2H)-one 1,1-dioxide?

5-Chloro-2-methylthieno[2,3-d]isothiazol-3(2H)-one 1,1-dioxide has the molecular formula C6H4ClNO3S2 and a molecular weight of 237.7 g/mol. Its IUPAC name is 5-chloro-2-methyl-1,1-dioxothieno[2,3-d][1,2]thiazol-3-one.

What is 5-Chloro-2-methylthieno[2,3-d]isothiazol-3(2H)-one 1,1-dioxide used for?

5-Chloro-2-methylthieno[2,3-d]isothiazol-3(2H)-one 1,1-dioxide is supplied as a characterised reference material related to Tenoxicam. 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 5-Chloro-2-methylthieno[2,3-d]isothiazol-3(2H)-one 1,1-dioxide can I order?

We supply 5-Chloro-2-methylthieno[2,3-d]isothiazol-3(2H)-one 1,1-dioxide 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 5-Chloro-2-methylthieno[2,3-d]isothiazol-3(2H)-one 1,1-dioxide?

Yes. Every lot of 5-Chloro-2-methylthieno[2,3-d]isothiazol-3(2H)-one 1,1-dioxide 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 5-Chloro-2-methylthieno[2,3-d]isothiazol-3(2H)-one 1,1-dioxide be shipped internationally?

Yes. We export 5-Chloro-2-methylthieno[2,3-d]isothiazol-3(2H)-one 1,1-dioxide worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.