4H-1,4-BENZOXAZIN-3-ONE, 2,3-DIHYDRO-6-CHLORO-2-METHYL-4-(2-METHYLAMINOETHYL)-, 4H-1,4-Benzoxazin-3-one, 2,3-dihydro-6-chloro-2-methyl-4-(2-methylaminoethyl)-, hydrochloride 57462-60-9