2-(7-Methoxy-1-naphthyl)ethylamine hydrochloride is the impurity of Agomelatine, an antidepressant.

Ddeacetyl asperulosidic acid methyl ester is a natual product isolated from the herbs of Hedyotis diffusa Willdit can lower the blood glucose level in normal mice.

Proteinases are enzymes that catalyse the breakdown of proteins. Proteinases are involved in many biological functions, including the digestion of ingested proteins, the breakdown of old proteins, and cell signalling.