2,6,9,11-Tetramethyl-5H-pyrido(3',4':4:5)pyrrolo(2,3-g)isoquinolinium 5H-Pyrido(3',4':4,5)pyrrolo(2,3-g)isoquinolinium, 2,6,9,11-tetramethyl- 69221-44-9 BRN 3999822