7-Formyl-9-methylbenz(c)acridine (CAS NO.2732-09-4) is also called as 5-21-09-00333 (Beilstein Handbook Reference) ; 9-Methylbenz(c)acridine-7-carboxaldehyde ; BRN 1578601 ; Benz(c)acridine-7-carboxaldehyde, 9-methyl- .