4,4'-(((4-Methoxyphenyl)methylene)bis((2-methyl-4,1-phenylene)azo))bis(4,5-dihydro-3-methyl-5-oxo-1-(4-sulfophenyl)-1H-pyrazol-4-yl), compd. with benzoic acid, 2-(6-(ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthen-9-yl)-, ethyl ester (1:2) 73003-87-9 Xanthylium, 9-(2-(ethoxycarbonyl)phenyl)-3,6-bis(ethylamino)-2,7-dimethyl-, salt with Xanthylium, 9-(2-(ethoxycarbonyl)phenyl)-3,6-bis(ethylamino)-2,7-dimethyl-, salt with 4,4'-(((4-methoxyphenyl)methylene)bis((2-methyl-4,1-phenylene)azo(4,5-dihydro-3-methyl-5-oxo-1H-pyrazole-4,1-diyl)))bis(benzenesulfonic acid) (2:1)