4H-1,4-BENZOXAZIN-3-ONE, 2,3-DIHYDRO-6-CHLORO-4-(3-DIMETHYLAMINOPROPYL)-2-METHYL 4H-1,4-Benzoxazin-3-one, 2,3-dihydro-6-chloro-4-(3-dimethylaminopropyl)-2-methyl-, hydrochloride 57462-76-7