1-BENZOTHIEPIN-5(2H)-ONE, 3,4-DIHYDRO-4-(PIPERIDINOMETHYL)-, HYDROCHLORIDE 21609-71-2 3,4-Dihydro-4-(piperidinomethyl)-1-benzothiepin-5(2H)-one hydrochloride 4-(Piperidinomethyl)-2,3,4,5-tetrahydro-1-benzothiepin-5-one hydrochloride