Renin Inhibitor. A potent renin inhibitor, Synonyms:-Aliskiren Hemifumarate; (2S,4S,5S,7S)-N-(2-Carbamoyl-2-methylpropyl)-5-amino-4-hydroxy-2,7-diisopropyl-8-[4-methoxy-3-(3-methoxypropoxy)phenyl]-octanamide hemifumarate, CAS Number:-173334-58-2, Molecular Formula:-CGGHGGNGO6 .1/2CGHGOG, 5mg.