1H-1,2,4-Triazolium, 5-((4-(diethylamino)phenyl)azo)-1,4-dimethyl-,phosphate (2:1) 1H-1,2,4-Triazolium, 5-((4-(diethylamino)phenyl)azo)-1,4-dimethyl-,phosphate monohydrogen 73398-78-4