The chemical UNII-5K09050P7Z has a designated molecular formula of C21H33Cl3N6O3 and a molecular weight of 523.884 g/mol. Synonyms may include: Ppack dihydrochloride, D-Phenylalanyl-prolyl-arginine chloromethyl ketone dihydrochloride, Ppack dihydrochloride [MI], L-Prolinamide, D-phenylalanyl-N-((1S)-4-((aminoiminomethyl)amino)-1-(2-chloroacetyl)butyl)-, dihydrochloride, D-Phe-pro-arg-chloromethyl ketone, dihydrochloride, Fprmecl, dihydrochloride, Ppack dihydrochloride (ChemID).