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

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

ethyl N-(5-amino-2-methylphenyl)carbamate

N-(2-甲基-5-氨基苯基)甘氨酸

(2-methyl-5-nitrophenyl)hydrazine,hydrochloride