英文别名6-benzyloxy-8-(2-chloro-acetyl)-4H-benzo[1,4]oxazin-3-one; 6-(BENZYLOXY)-8-(2-CHLOROACETYL)-2H-BENZO[B][1,4]OXAZIN-3(4H)-ONE; 8-(2-chloroacetyl)-6-phenylmethoxy-4H-1,4-benzoxazin-3-one; 2H-1,4-Benzoxazin-3(4H)-one, 8-(2-chloroacetyl)-6-(phenylmethoxy)-; Olodaterol Impurity 6; Odatero Impurity 8 
