Photo-stable cosmetic and pharmaceutical formulations containing

Details Photo-stable cosmetic and pharmaceutical formulations containing Photo-stable cosmetic and pharmaceutical formulations containing

1999-03-12

2000-03-14

Richter, Johann

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitriles

C07C25504

Patent

active

06037487&

ABSTRACT:
A method of using compounds of formula I ##STR1## in which the C.dbd.C double bond is present in E and/or Z configuration and the variables R.sup.1, R.sup.2, R.sup.3 and R.sup.4 have the meanings defined in the specification disclosure, as UV filters, particularly UV-A filters, in cosmetic and pharmaceutical formulations for the protection of the human skin or human hair from solar radiation, alone or together with compounds known per se in cosmetic and pharmaceutical formulations and capable of absorbing radiation in the UV range.

REFERENCES:
patent: 4387089 (1983-06-01), De Polo

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