39624-65-2 5-(1-Methyl-4-piperidylidene)-5H-[1]benzopyrano[2,3-b]pyridine maleate (1:1) 5H-[1]Benzopyrano[2,3-b]pyridine, 5-(1-methyl-4-piperidinylidene)-, (Z)-2-butenedioate (1:1) Azanator maleate NSC295279 Sch 15280