Light screening agents

Details Light screening agents Light screening agents

1996-12-11

1999-02-23

Gupta, Yogendra N.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

544194, C07D25142

Patent

active

058745769

ABSTRACT:
A light screening agent, which contains a compound of the general formula ##STR1## wherein R and R' are alkyl, hydroxyalkyl, alkenyl, alkynyl, or alkyl ether radicals substituted by one or more hydroxy and/or alkoxy groups and

REFERENCES:
patent: 3896125 (1975-07-01), Helmo

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