Lopinavir. A HIV-1 protease inhibitor, Synonyms:-(2S)-N-[(2S,4S,5S)-5-[2-(2,6-dimethylphenoxy)acetamido]-4-hydroxy-1,6-diphenylhexan-2-yl]-3-methyl-2-(2-oxo-1,3-diazinan-1-yl)butanamide, CAS Number:-192725-17-0, Molecular Formula:-CGGHG8NGOG, Purity:-G98% by HPLC, 250mg.