Quassin n. : The bitter principle of quassia, extracted as a white crystalline substance; -- formerly called quassite.

Example:


Taxonomy
Quassin, bitter, free encyclopedia, trione, 11a, 11c, crystalline substance, tree, carbon atoms, bitter wood, search, diene, 3aS, 6aR, 8S, 4,5, 6a, 7a.

Defination from the web:
Quassin is used as a medicine in traditional Chinese medicine. ... a b Scientific Committee on Food Opinion of the Scientific Committee on Food on quassin (expressed on 2 July 2002). SCF/CS/FLAV/FLAVOUR/29 Final ...