Ingenol-5,20-acetonide is a natural product.

Eicosyl ferulate is a natural product of Aristolochia, Aristolochiaceae. Eicosyl ferulate can be used as a reference standard.

Crustacean cardioactive peptide (CCAP) is a highly conserved, amidated cyclic nonapeptide with the primary structure PFCNAFTGC-NH2 (ProPheCysAsnAlaPheTyrGlyCys-NH2) and a disulfide bridge between Cys3 and Cys9. It is found in crustaceans and insects where it behaves as a cardioaccelerator, neuropeptide transmitter for other areas of the nervous system and a hormone.