2-(2’-硝基苯偶氮)-4-甲基酚

2-硝基-4-甲苯酚

4-羟基-3-硝基苯甲醛

(2-hydroxy-5-methylphenyl)carbamic acid tert-butyl ester

4-(2-hydroxy-5-methyl-phenylazo)-benzenesulfonic acid , sodium-salt