Dihydroeuparin as sunscreen

Abstract

Physicochemical parameters, ε, λ, solubility in water and Brij-35, pKa, Ka and photostability for dihydroeuparin, 5-acetyl-2, 3-dihydro-6-hydroxi-2-isopropenyl-benzo (b) furan (from Senecio Graveolens), were obtained and compared to those of ohidroxyacetophenone. Its sunscreen capabilities, SPF and SSPF, were obtained for both compounds and compared to those of homomenthylsalicylate (homosalate). Results indicate that dihydroeuparin has sunscreen behavior at 270-340 nm zone, with high photostability, high solubility in miscellar system, apparently is a non-toxic substance and shows higher sunscreen capabilities than homosalate.