1-BENZOTHIEPIN-5(2H)-ONE, 3,4-DIHYDRO-4-(DIETHYLAMINO)-, HYDROCHLORIDE 21609-68-7 3,4-Dihydro-4-(diethylamino)-1-benzothiepin-5(2H)-one hydrochloride 4-Diethylamino-2,3,4,5-tetrahydro-1-benzothiepin-5-one hydrochloride