66693-25-2 Benzothiazolium, 2-((4-(ethyl(2-hydroxyethyl)amino)phenyl)azo)-6-methoxy-3-methyl-, sulfate (2:1) (salt) Bis(2-((4-(ethyl(2-hydroxyethyl)amino)phenyl)azo)-6-methoxy-3-methylbenzothiazolium) sulphate EINECS 266-449-1 Ethanol, 2-(ethyl(4-((6-methoxy-3-methyl-2-benzothiazolium)azo)phenyl)amino)-, sulfate (2:1)