52206-31-2 5H-Benzopyrano(2,3-b)pyridin-5-one, 8-methoxy-9-(1-piperidinylmethyl)-, monohydrochloride 7-Methoxy-8-piperidinomethyl-1-azaxanthone hydrochloride 8-Methoxy-9-(1-piperidinylmethyl)-5H-benzopyrano(2,3-b)pyridin-5-one hydrochloride