1H-1,2,4-Triazolium, 5-((4-(diethylamino)phenyl)azo)-1,4-dimethyl-,phosphate 1H-1,2,4-Triazolium, 5-((4-(diethylamino)phenyl)azo)-1,4-dimethyl-,phosphate (3:1) 73398-75-1