1,3-Propanediamine, N-ethyl-N'-(9-methoxy-5-methyl-6H-pyrido(4,3-b)carbazol-1-yl)- 83948-06-5 BRN 5626502 N-Ethyl-N'-(9-methoxy-5-methyl-6H-pyrido(4,3-b)carbazol-1-yl)-1,3-propanediamine