25-056

4-Hydroxy-3-methoxy carbonyl-2H-[1,2]- benzothiazine-1,1-dioxide

C₁₀H₉NO₅S

MW  255.25

mp 166-169^oC

Off white crystalline solid

Soluble in chloroform

25-057

4-Hydroxy-3-methoxy carbonyl-2-methyl-

2H-[1,2]-benzothiazine-1,1-dioxide

C₁₁H₁₁NO₅S

MW  269.28

mp 161-163^oC

Off white crystalline solid

Soluble in chloroform