title: Sunscreens derived from paraaminobenzoic acid. Identification and dosage of N-propoxylated ethyl paraaminobenzoates in sun-creams.
abstract: Summary The derivatives of paraaminobenzoic acid listed by the council of Europe (February 1981) as 'Sunscreen agents used to protect the skin'can be determined by simple chromatographie methods (TLC + GLC) described in a previous article. In Amerscreen (R)-P*, (trade name of N-propoxylated ethyl paraaminobenzoate), four constituants are identified by means of nuclear magnetic resonance spectroscopy (NMR) and quantitatively measured by high pressure liquid chromatography (HPLC) in sun-creams.
authors.affiliation: Ministère de la Santé Publique, Institut d'Hygiene et d'Epidémiologie, Département Pharmatoxicologie, Cellule Cosmétiques, 14, rue J. Wytsman, 1050 Bruxelles, Belgium.
authors.forename: M O
authors.initials: MO
authors.lastname: Masse
authors.forename: M
authors.initials: M
authors.lastname: Herpol-Borremans
authors.forename: R G
authors.initials: RG
authors.lastname: Et
authors.forename: S
authors.initials: S
authors.lastname: Gleviczky