1H-1,2,4-Triazolium, 3-((4-((2-(benzoyloxy)ethyl)ethylamino)phenyl)azo)-1,4-dimethyl-, sulfate (2:1) 3-((4-(N-Ethyl-N-(2-(phenylcarbonyloxy)ethyl)amino)phenyl)azo)-1,4-dimethyl-1,2,4-triazolium, sulfate (2:1) 72906-35-5