502-02-3
4-[[4-(dimethylamino)phenyl]azo]benzenesulphonic acid
→
~82%
2052-46-2
N,N-二甲基对苯二胺盐酸盐
74886-84-3
Benzoic acid, 2-[(1E)-[4-(dimethylamino)phenyl]azo]-