N-cyano-N',2,2-trimethyl-6-nitrochromene-4-carboximidamide
N-cyano-N',2,2-trimethyl-6-nitro-chromene-4-carboxamidine
N-cyano-N',2,2-trimethyl-6-nitro-4-chromenecarboxamidine
N-cyano-N',2,2-trimethyl-6-nitro-chromene-4-carboximidamide