Major isomers of the active ingredient of the sunscreen 5(3,3-dimethyl-2-norbornylidene)-3 pentene-2-one.
Synopsis With high-performance liquid chromatography the three major isomers present in the sunscreen agent, 5(3, 3-dimethyl-2-norbornylidene)-3 pentene-2-one, have been isolated and quantified. Their structures have been determined using mass, infra-red, and NMR spectrometry. Isomères dans le filtre solaire 5(3, 3-dimethyl-2-norbornylidene)-3 pentene-2-one.
Saunal
H
H
Centre de Recherche Clin Midy, Rue du Professeur J. Blayac, 34082 Montpellier Cédex, France.
Beijersbergen
G M
GM
Henegouwen
V
V
Delonca
H
H