4-Pentenoic acid also known as allyl acetic acid or 4-pentenate belongs to the class of organic compounds known as straight chain fatty acids. These are fatty acids with a straight aliphatic chain. 4-Pentenoic acid is a very hydrophobic molecule practically insoluble (in water) and relatively neutral.

CTP disodium dihydrate is an agonist of P2X4 purinergic receptor.

Raddeanoside R16 is an oleanane-type saponin, that can be isolated from the rhizoma of Anemone raddeana.