Pentigetide is a sythsis pepetide (Asp-Ser-Asp-Pro-Arg or D-S-D-P-R), also know as “HEPP” for “Human IgE Pentapeptide”. Pentigetide can not produce IgE inhibition in several different systems, due to the aspartic acids in HEPP changed into an asparagine.

Sodium dodecyl sulfate(Sodium lauryl sulfate) is a pharmaceutical excipient that is biologically inactive and improves the stability, solubility and processability of pharmaceutical preparations.

N-alpha-Tosyl-L-lysine chloromethyl ketone hydrochloride is an inhibitor of trypsin-like protease.