英文别名Butylphthalide Impurity 20; 3-butyl-3-hydroxy-2-benzofuran-1-one; 1(3H)-Isobenzofuranone,3-butyl-3-hydroxy; Butylphthalide metabolite M3-1; 3-Butyl-3-hydroxy-1(3H)-isobenzofuranone; 3-hydroxy-3-butylphthalide; n-Butylphthalide-001; 3-Butylphthalide Impurity 1; Butyphthalide impurity3; Impurity P of butylphthalide 
