4-methylcatechol is a metabolite of homoprotocatechuic acid. It is both a substrate and a suicide inhibitor of Catechol 23-dioxygenase. 4-methylcatechol is known to induce the production of brain-derived neurotrophic factor (BDNF). Recent studies have suggested that a lack of brain-derived neurotrophic factor (BDNF) in the limbic system may cause neuropathic pain.

Propyl heptanoate is an important chemical raw material and an organic solvent in the industrial field. It can be used in synthetic fragrances, nylon fibers and advanced plastics.

Sinapaldehyde has effects against 65 strains of Candida,Sinapaldehyde inhibits prostaglandin synthetase in a dose-dependent way, it dose-dependently inhibits ethyl phenylpropiolate-induced edema of the rat ear, and can inhibit electrically induced contractions of the guinea pig ileum in a dose-dependent way.