3,3-bis-(1-Butyl-2-methyl-1H-indol-3-yl)phthalide

3,3-bis(1-butyl-2-methylindol-3-yl)phthalide ; 3,3-bis(1-butyl-2-methyl-1h-indol-3-yl)-1(3h)-isobenzofuranone ; copikem 20 magenta ; yamamoto red 40 ; copikem 20 ; copikem magenta ; copikem magenta 20 ; copikem xx ; 3,3-bis(1-n-butyl-2-methylindol-3-yl)phthalide ; 3,3-bis(1-butyl-2-methyl-1h-indol-3-yl)phthalide