1-(3-Pyridyl)-3,4-dihydro-beta-carboline 110187-44-5 3H-Pyrido(3,4-b)indole, 4,9-dihydro-1-(3-pyridinyl)- 4,9-Dihydro-1-(3-pyridinyl)-3H-pyrido(3,4-b)indole 5-26-02-00540 (Beilstein Handbook Reference) BRN 0536581