5-Fluoromethylornithine dihydrochloride (5-FMOrn dihydrochloride) is a selective inhibitor of L-Ornithine:2-oxoacid aminotransferase (OAT) and a specific inactivator of OAT, which can be used to study metabolic diseases and neurological diseases.

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.

Stigmastadienone is a natural product.