17192-80-2 2,5-Dimethoxy-4-((4-methylphenyl)thio)benzenediazonium tetrachlorozincate (2:1) Benzenediazonium, 2,5-dimethoxy-4-((4-methylphenyl)thio)-, (T-4)-tetrachlorozincate(2-) (2:1) EINECS 241-232-4 p-(4-Tolylmercapto)-2,5-dimethoxybenzenediazonium chloride zinc chloride