(R)-(3-(4-morpholinophenyl)-2-oxooxazolidin-5-yl)methyl methanesulfote (R)-(3-(4-morpholinophenyl)-2-oxooxazolidin-5-yl)methyl methanesulfonate Linezolid-15 Linezolid Impurity 91 Linezolid impurity 26/(R)-(3-(4-morpholinophenyl)-2-oxooxazolidin-5-yl)methyl methanesulfonate 2-Oxazolidinone, 5-[[(methylsulfonyl)oxy]methyl]-3-[4-(4-morpholinyl)phenyl]-, (5R)- Linezolid Impurity207