4-Methyl-1,1,3-trioxothieno[3,2-d][1,2]thiazole-5-carboxylic acid CAS 731802-17-8

Purity 97%+In StockPharmaceutical Standards
CAS No.731802-17-8
Molecular FormulaC7H5NO5S2
Molecular Weight247.25 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Methyl-1,1,3-trioxothieno[3,2-d][1,2]thiazole-5-carboxylic acid CAS 731802-17-8 chemical structure

Description

4-Methyl-1,1,3-trioxothieno[3,2-d][1,2]thiazole-5-carboxylic acid (CAS 731802-17-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C7H5NO5S2. Molecular weight: 247.25 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.

Physical & Chemical Properties

Molecular FormulaC7H5NO5S2
Molecular Weight247.25 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1986
Nitrogen Atoms1
Sulfur Atoms2

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