Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1973-10-10
1976-06-22
Raymond, Richard L.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
204158R, 260471R, 260472, 260518R, 260613D, 424 60, C07C12506
Patent
active
039651444
ABSTRACT:
Compounds are provided for reducing erythemal response which are photoreactive precursors to para-aminobenzoic acid or its physiologically acceptable esters. Upon exposure to ultraviolet radiation of greater than about 280nm, the compounds of this invention undergo a photoreactive degradation to provide a regulated amount of a sunscreen material which screens out ultraviolet radiation which could lead to erythema.
The compounds are benzyl esters of p-carboxycarbanilic acid and the dermatological and physiological acceptable esters of the carboxy group.
REFERENCES:
patent: 3790615 (1974-02-01), Traber et al.
Burkoth Terry L.
Packard Martin E.
Ullman Edwin F.
Raymond Richard L.
Syva Company
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