Methyl 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-Dioxide(Piroxicam Impurity J)

• CAT Number: R005668
• CAS Number: 35511-15-0
• Molecular Formula: C11H11NO5S
• Molecular Weight: 269.27
• Purity: ≥95%
• Synonyms: 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic Acid Methyl Ester 1,1-Dioxide; Piroxicam Impurity J
• Storage: 2-8°C
• IUPAC Name: methyl 4-hydroxy-2-methyl-1,1-dioxo-1$l^{6}
• InChI: InChI=1S/C11H11NO5S/c1-12-9(11(14)17-2)10(13)7-5-3-4-6-8(7)18(12,15)16/h3-6,13H,1-2H3
• InChIKey: NGHIOTWSWSQQNT-UHFFFAOYSA-N
• SMILES: CN1C(=C(C2=CC=CC=C2S1(=O)=O)O)C(=O)OC

Methyl 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-Dioxide（Cat No.:R005668）, also known as Piroxicam Impurity J, is a chemical compound that serves as an impurity in the synthesis or production of piroxicam, a non-steroidal anti-inflammatory drug (NSAID) used to reduce pain and inflammation in conditions like arthritis. Impurities like Piroxicam Impurity J are closely monitored in pharmaceutical manufacturing to ensure the quality and safety of the final drug product.