34144-31-5 5H-BENZO(4,5)CYCLOHEPTA(1,2-b)PYRIDINE-5-CARBOXYLIC ACID, 10,11-DIHYDRO-5-HYDROX 5H-Benzo(4,5)cyclohepta(1,2-b)pyridine-5-carboxylic acid, 10,11-dihydro-5-hydroxy-, 2-(dimethylamino)ethyl