12-Dipalmitoyl-sn-glycero-3-phosphoethanolamine (DPPE) a phospholipid member of the glycerophosphonoethanolamine family is a major component in biological membranes. Studies focused on interactions between DPPE and cholesterol show that cholesterol induces condensation of DPPE monolayers in the presence of Ca2+ ions.

2,3-Dihydroxy-4-methoxybenzoic acid is a compound isolated from [sweet cherry fruit].

Isopropylparaben is a preservative and preservative insecticide.