Product Name:2-Methyl-4-hydroxy-2H-1,2-benzothiazine-3 -carboxylic acid ethyl ester 1,1-dioxide
CAS NO.: 113913-36-3
Structural formula:

Molecular formula:C₁₂H₁₃NO₅S
Molecular weight:283.30
Appearance : Off white to white crystalline powder
Assay（HPLC）:≥99.0%
Largest single impurity(HPLC): ≤0.2%
Loss on drying ≤0.5%
melting point: 40~43℃
packing: 25kg/drum