2-((4-(Butyl(2-cyanoethyl)amino)phenyl)azo)-6-methoxy-3-methylbenzothiazolium methyl sulphate 2-((4-(N-Butyl-(2-cyanoethyl)amino)phenyl)azo)-6-mehtoxy-3-methylbenzothiazolium, methyl sulfate 26021-89-6 Benzothiazolium, 2-((4-(butyl(2-cyanoethyl)amino)phenyl)azo)-6-methoxy-3-methyl-, methyl sulfate EINECS 247-416-0