左氧氟沙星杂质现货供应
左氧氟沙星 levofloxacin n-oxide c18h20fn3o5 n/a
左氧氟沙星 levofloxacin usp related compound a c17h18fn3o4 n/a
左氧氟沙星 levofloxacin usp related compound c c20h24fn3o4 177472-30-9
左氧氟沙星 levofloxacin r-isomer c18h22cl2fn3o4 100986-86-5
左氧氟沙星 levofloxacin descarboxy impurity c17h20fn3o2 178964-53-9
左氧氟沙星 levofloxacin desethlene impurity c16h20cl2fn3o4 n/a
左氧氟沙星 levofloxacin desfluoro impurity c18h21n3o4 n/a
左氧氟沙星 levofloxacin desfluoro impurity c18h21n3o4 n/a
左氧氟沙星 levofloxacin desethylene diformyl impurity c18h18fn3o6 151377-74-1
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