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Recebido em 1/11/10; aceito em 14/5/11; publicado na web em 22/7/11 Doripenem was characterized through physicochemical and spectroscopic techniques, as well as thermal analysis. TLC (Rf = 0.62) and HPLC (rt = 7.4 min) were found to be adequate to identify the drug. UV and infrared spectra showed similar profile between doripenem bulk and standard. The 1 H and 13 C NMR analysis revealed chemical shifts that allowed identifying the drug. Thermal analysis demonstrated three steps with mass loss,doi:10.1590/s0100-40422011000900024 fatcat:m6wgn7wfbfda3i5y6trwyf5rne