Chemical Name: (R)-Linezolid Desacetamide Descarbonyl Phthalimide ; (R)-Linezolid Desacetyl Phthalimide Descarbonyl Impurity ; 2-[(2R)-3-[[3-Fluoro-4-(4-morpholinyl)phenyl]amino]-2-hydroxypropyl]-1H-isoindole-1,3(2H)-dione ; N-(3-Phthalimido-2-(R)-hydroxypropyl)-3-fluoro-4-(morpholinyl)aniline ;