2-Furancarboxylic acid, 5-nitro-, 2-(7-chloro-2H-1,4-benzothiazin-3-yl)hydrazide 5-Nitro-2-furancarboxylic acid 2-(7-chloro-2H-1,4-benzothiazin-3-yl)hydrazide 78959-24-7 BRN 4568745