6-((2,6-Dichlorophenyl)methylsulfonyl)-2-((4-hydroxy-3-nitrophenyl)methylidene)-4H-1,4-benzothiazin-3-one
6-((2,6-dichlorophenyl)methylsulfonyl)-2-((4-hydroxy-3-nitrophenyl)methylidene)-4h-1,4-benzothiazin-3-one