4H-1,4-BENZOXAZIN-3-ONE, 2,3-DIHYDRO-6-CHLORO-2-METHYL-4-(2-(1-PYRROLIDINYL)PROP 4H-1,4-Benzoxazin-3-one, 2,3-dihydro-6-chloro-2-methyl-4-(2-(1-pyrrolidinyl)propyl)-, oxalate 57462-90-5