英文别名Gemcitabine Impurity 2; 2-Deoxy-2,2-difluoro-D-erythro-pentofuranose-3,5-dibenzoate-1-methanesulfonate; D-erythro-Pentofuranose, 2-deoxy-2,2-difluoro-, 3,5-dibenzoate 1-methanesulfonate; 3,5-Di-O-benzoyl-2-deoxy-2,2-difluoro-1-O-(methylsulfonyl)-D-erythro-pentofuranose; 3,5-Bis(benzoyl)-1-methanesulfonyloxy-2-deoxy-2,2-difluororibose; 3,5-Bis(benzoyl)-1-methanesulfonyloxy-2-deoxy-2,2-difluororibose(β-form); 3,5-Di-O-benzoyl-2-deoxy-2,2-difluoro-1-O-methanesulfonyl-D-ribofuranose; Gemcitabine Impurity 4 
