10,11-Dihydro-5-ethynyl-5H-benzo(4,5)cyclohepta(1,2-b)pyridin-5-ol hydrochloride 5H-Benzo(4,5)cyclohepta(1,2-b)pyridin-5-ol, 10,11-dihydro-5-ethynyl-, hydrochloride DE8029000