1H-1,2,4-Triazolium, 5-((4-((2-(benzoyloxy)ethyl)ethylamino)phenyl)azo)-1,4-dimethyl-, sulfate (2:1) 72749-67-8 Bis(3-((4-(N-ethyl-N-(2-(phenylcarbonyloxy)ethyl)amino)phenyl)azo)-2,4-dimethyl-1,2,4-triazolium), sulfate