bis[2-[[4-[ethyl(2-hydroxyethyl)amino]phenyl]azo]-6-methoxy-3-methylbenzothiazolium] tetrachlorozincate;Benzothiazolium, 2-4-ethyl(2-hydroxyethyl)aminophenylazo-6-methoxy-3-methyl-, (T-4)-tetrachlorozincate(2-) (2:1)
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