1,3,4,10-Tetramethyl-7,8-benzacridine [French] 4-20-00-04335 (Beilstein Handbook Reference) 51787-44-1 7,8,9,11-Tetramethylbenz(c)acridine BRN 0247294 Benz(c)acridine, 7,8,9,11-tetramethyl-