Dihydroseselin is a 7-hydroxycoumarin derivative. 7-hydroxycoumarin is a natural product of the coumarin family, is a fluorescing compound which can be used as a sunscreen agent[1]
[1]. Jetter, M. M., et al. Novel syntheses of dihydroxanthyletin and dihydroseselin derivatives. Journal of Heterocyclic Chemistry, 1990:27(4), 995-997.