2-((3-(Carboxylatomethyl)-5-chloro-3H-benzothiazol-2-ylidene)methyl)-1-ethyl-6-methoxyquinolinium 63870-32-6 EINECS 264-525-9 Quinolinium, 2-((3-(carboxymethyl)-5-chloro-2(3H)-benzothiazolylidene)methyl)-1-ethyl-6-methoxy-, inner salt