2-Propanol, 1-(diethylamino)-3-((6-methyl-5H-pyrido(3',4':4,5)pyrrolo(2,3-g)isoquinolin-10-yl)amino)-, trimaleate 5H-Pyrido(3',4':4,5)pyrrolo(2,3-g)isoquinoline, 2-propanol deriv., trimaleate 83948-00-9