4-(fluoranthen-3-ylamino)-4-oxobut-2-enoic acid

4-(dioctadecylamino)-4-oxobut-2-enoic acid

1-(2,3,4,5,6-pentachlorophenyl)pyrrole-2,5-dione

4-(2-methyl-5-nitroanilino)-4-oxobut-2-enoic acid

1-(2-methyl-5-nitrophenyl)pyrrole-2,5-dione