(1-(2,2-Dimethyl-6-nitro-2H-1-benzopyran-4-yl)-2(1H)-pyridinylidene)cyanamide 135809-60-8 4-(2-Cyanimino-1,2-dihydropyrid-1-yl)-2,2-dimethyl-6-nitrochromene Cyanamide, (1-(2,2-dimethyl-6-nitro-2H-1-benzopyran-4-yl)-2(1H)-pyridinylidene)- SR 47063 SR-47063