Boc-Gln-Ala-Arg-AMC hydrochloride is a fluorescent compound used as a substrate for trypsin and for assessing the protein hydrolysis activity of TMPRSS2.

DiI is a lipophilic membrane dye. It diffuses laterally to stain the entire cell. DiI is excited to emit orange-red fluorescence which is weak in water but strong and photostable when incorporated into membranes.

2R,4S-Sacubitril is the impurity of Sacubitril which is a neprilysin inhibitor.