Dieckol, a rhizomycin found in some brown algae species, has antimicrobial, anticancer, antioxidant, antiaging, antidiabetic, and neuroprotective effects, ameliorates acute hearing loss, and inhibits cell proliferation through cell cycle arrest in human tracheal fibroblasts via Hs680.Tr.

N,N'-Dimethylthiourea (DMTU), isolated from Allii Sativi Bulbus, is an orally active scavenger of hydroxyl radical ( OH) and blocks OH production by activated neutrophils in vitro.

Adrenochrome (Adraxone) is a cytotoxic molecule that can be used to kill bacteria. Adrenochrome is an oxidized product of Epinephrine.