2-(2-(5-Nitro-2-furoyl)-hydrazino)-5-nitrosotropone 2-Furancarboxylic acid, 5-nitro-, 2-(4-nitroso-7-oxo-1,3,5-cycloheptatrien-1-yl)hydrazide 2-Furoic acid, 5-nitro-, 2-(4-nitroso-7-oxo-1,3,5-cycloheptatrien-1-yl)-hydrazide 900-30-1 RCH-173