142676-91-3
4-(2,4-dimethoxy-phenylazo)-resorcinol
+
77-78-1
硫酸二甲酯
→
29418-55-1
bis(2,4-dimethoxyphenyl)diazene
108-46-3
间苯二酚
2735-04-8
2,4-二甲氧基苯胺