4-Dimethylaminocinnamaldehyde is a photometric reagent for primary aromatic amines. The 4-(dimethylamino)cinnamaldehyde assay is currently used to quantify proanthocyanidin (PAC) content in cranberry products.

FLAG peptide is an eight amino acids peptide (Asp-Tyr-Lys-Asp-Asp-Asp-Asp-Lys) with an enterokinase-cleavage site used for the purification of recombinant proteins.

1,3,7-Trimethyluric acid is a purine alkaloid that occurs as a minor metabolite of caffeine in humans.?As an antioxidant, it has shown an ability to scavenge hydroxyl radicals as well as protective potential against lipid peroxidation in erythrocyte membranes.