3-Oxo-1,2-benzisothiazole-2(3H)-acetic acid ethyl ester 1,1-dioxide

CAS: 24683-20-3

Ref. 3D-IO57893

Product Information

• Name: 3-Oxo-1,2-benzisothiazole-2(3H)-acetic acid ethyl ester 1,1-dioxide
• Synonyms: Piroxicam impurity ESaccharin N-(2-acetic acid ethyl ester)
• Brand: Biosynth
• Description: 3-Oxo-1,2-benzisothiazole-2(3H)-acetic acid ethyl ester 1,1-dioxide is an impurity in the synthesis of a drug. It is not active and has no known therapeutic value. 3-Oxo-1,2-benzisothiazole-2(3H)-acetic acid ethyl ester 1,1-dioxide is used as a reference standard for HPLC and has been shown to be metabolized by cytochrome P450 enzymes.

Chemical properties

• Molecular weight: 269.27 g/mol
• Formula: C₁₁H₁₁NO₅S
• Purity: Min. 95%
• Color/Form: White to off-white solid.
• InChI: InChI=1S/C11H11NO5S/c1-2-17-10(13)7-12-11(14)8-5-3-4-6-9(8)18(12,15)16/h3-6H,2,7H2,1H3
• InChI key: InChIKey=YKCQHUPTHHPHGX-UHFFFAOYSA-N
• SMILES: CCOC(=O)CN1C(=O)c2ccccc2S1(=O)=O