2-Methyl-9-hydroxyellipticinium 58337-34-1 58337-35-2 58447-24-8 6H-Pyrido(4,3-b)carbazolium, 9-hydroxy-2,5,11-trimethyl- 9-Hydroxy-2,5,11-trimethyl-6H-pyrido(4,3-b)carbazolium 9-Hydroxy-2-methyl ellipticinium BRN 4153069 NSC 264-137