SciELO - Scientific Electronic Library Online

 
vol.45 número4SINTESIS Y CARACTERIZACION [Cp*Ru(C8H7)], UN INTERMEDIARIO UTIL PARA LA CONSTRUCCION DE OLIGOMEROS HOMO Y HETERO POLINUCLEARES DE RUTENIOON THE USE OF 9,10-DIMETHYLANTHRACENE AS CHEMICAL RATE CONSTANT ACTINOMETER IN SINGLET MOLECULAR OXYGEN REACTIONS índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Boletín de la Sociedad Chilena de Química

versão impressa ISSN 0366-1644

Resumo

ORTEGA, Pedro A. et al. DIHYDROEUPARIN AS SUNSCREEN. Bol. Soc. Chil. Quím. [online]. 2000, vol.45, n.4, pp.629-636. ISSN 0366-1644.  http://dx.doi.org/10.4067/S0366-16442000000400017.

Physicochemical parameters, e, l, 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 o-hidroxyacetophenone. 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

Palavras-chave : dihydroeuparin; miscellar system; solubility; photostability; SPF; SSPF.

        · resumo em Espanhol     · texto em Inglês

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons