Avenanthramide B is a monohydroxybenzoic acid resulting from the formal condensation of the carboxy group of ferulic acid with the amino group of 2-amino-5-hydroxybenzoic acid. It is an oat phytoalexin produced in response to pathogen attack and elicitation. It has a role as a phytoalexin, an antineoplastic agent and an apoptosis inducer. It is a secondary carboxamide, a member of cinnamamides, a monomethoxybenzene, a monohydroxybenzoic acid, a member of phenols and an amidobenzoic acid.

The alkaloid Narciclasine is the bioactive compound responsible for the anti-inflammatory action of HCE. Narciclasine displays marked proapoptotic and cytotoxic activity, as does pancratistatin, and significant in vivo anticancer effects in various experimental models, but it is also associated with severe toxic side effects. Narciclasine acts on the auxin signaling pathway upstream of TIR1, which modulates Aux/IAA protein degradation, and thereby affects the auxin-mediated responses in Arabidopsis roots, inhibits the root hair development of lettuce seedlings. Narciclasine is a natural product found in Narcissus pseudonarcissus. It has a role as a metabolite.

Antheraxanthin is an epoxycarotenol that is beta-carotene-3,3'-diol in which one of the one of the endocyclic double bonds has been oxidised to the corresponding epoxide. It is a neutral yellow plant pigment found in Euglenophyta. It has a role as a biological pigment, a marine metabolite and a plant metabolite.

Picfeltarraenin X shows stronger AChE inhibition than the known AChE inhibitor Tacrine.

Vincosamide can effect relaxation of the supercoiled pBR322 plasmid DNA in the presence of Cu2+.