2-羟基硫代苯甲酰胺

2-[2-(6-oxocyclohexa-2,4-dien-1-ylidene)-1,3-benzoxazin-4-ylidene]propanedinitrile

2-(2-Hydroxyphenyl)-5-imino-4-thioxo-3,4-dihydro-5H-<1>benzopyrano<4,3-d>pyrimidine