Phenothiazine-3-carboxylic acid

13H-naphtho<1',8':3,4,5>cyclohexa<1,2-b><1,4>benzothiazin-6-one

3-amino-4-sulfanylbenzenesulfonic acid

3,4-二氢-2H-1,4-苯并噻嗪1,1-二氧化物

2-(2,3-dihydro-1,3-benzothiazol-2-yl)-1-phenylethanone