1H-2,3-BENZOXAZINE, 3,4-DIHYDRO-7-CHLORO-3-(2-PIPERIDINOETHYL)-, DIHYDROCHLORIDE 1H-2,3-Benzoxazine, 7-chloro-3,4-dihydro-3-(2-piperidinoethyl)-, dihydrochloride 21977-22-0 7-Chloro-3-(2-piperidinoethyl)-3,4-dihydro-1H-2,3-benzoxazine dihydrochloride