Synonyms: 3,3'-Bis(dimethylaminoethyl)-2,2'-bis(ethoxycarbonyl)-5,5'-biindole methosulfate;Ammonium, ((2-carboxy-5,5'-biindol)-3,3'-diylmethylene)bis(trimethyl-, bismethanesulfate, diethyl ester;AC1MHVC3;LS-17022;[2-ethoxycarbonyl-5-[2-ethoxycarbonyl-3-[(trimethylazaniumyl)methyl]-1H-indol-5-yl]-1H-indol-3-yl]methyl-trimethylazanium; methyl sulfate;75078-46-5