Objective To explore the cytotoxicity on eight kinds of human cancer cell lines and apoptosis induction on human nasopharyngeal cancer cells(CNE_2) of a new semi-synthesized naphthoquinone derivative(2,3,11-triethanesulfanyl-6-isohexenylnaphthazarin,TEISHNZ).

Covalent modification of four isolated alkannin derivatives (alkannin, acetylalkannin, β, β dimethylacrylalkannin and β acetoxyisovalerylalkannin, respectively) on rabbit muscle latate dehydrogenase (LDHase) and yeast Alcohol Dehydrogenase (ADHase) has been studied.

The density functional theory study on the fluorescent emission spectra of naphthaline derivatives;