1H-1,2,4-triazolium, 3(or 5)-[[4-[[2-[[2-chloro-4-[[1,4-dimethyl-1H-1,2,4-triazolium-3(or 5)-yl]azo]phenyl]amino]ethyl]methylamino]phenyl]azo]-1,4-dimethyl-, sulfate (1:1)