4-(3,4-dimethylanilino)-4-oxobutanoic acid

2,4,6,7-四甲基喹啉

1-(4,6,7-三甲基-2-喹唑啉基)胍

N-(3,4-二甲基苯基)肼基硫代甲酰胺

N-(3,4-dimethyl-2,6-dinitrophenyl)methanesulfonamide