Synonyms: 1H-1,2,4-Triazolium, 3,3'(or 5,5')-(1,2-ethanediylbis((ethylimino)-4,1-phenyleneazo))bis(1,4-dimethyl-, (T-4)-tetrachlorozincate(2-) (1:1);3,3'(Or5,5')-(ethylenebis((ethylimino)-p-phenyleneazo))bis(1,4-dimethyl-1H-1,2,4-triazolium) tetrachlorozincate(2-)