2-3-[(2,4-dimethylphenyl)-methylamino]-6-[(2,5-dimethylphenyl)-methylamino]-xanthylium-9-yl-benzenesulfonate (7-20 %)
2-]3-[(2,4-dimethylphenyl)-methylamino]-6-[(2,5-dimethylphenyl)-methylamino]-xanthylium-9-yl[-benzenesulfonate (7-20 %)