Sunscreening compound and method

Details Sunscreening compound and method Sunscreening compound and method

1975-12-22

1978-01-24

Ore, Dale R.

Drug, bio-affecting and body treating compositions

Topical sun or radiation screening, or tanning preparations

260297HP, 260295VB, 424263, A61K 742, C07D47100

Patent

active

040704505

ABSTRACT:
Radiation screening preparations comprising a cosmetically acceptable carrier and, as the active ingredient, one or more compounds represented by the formula ##STR1## WHEREIN N IS 1, R.sub.1 is hydrogen, alkyl, alkali metal, ammonium or ammonium substituted with one or more alkyl or hydroxyalkyl residues, R.sub.2 is hydroxymethyl or alkoxymethyl and R.sub.3 is hydrogen; or R.sub.1 and R.sub.2 together constitute a methylene group and R.sub.3 is hydrogen, methyl or ethyl; and wherein n is 2, R.sub.1 is an alkaline earth metal, R.sub.2 is hydroxymethyl or alkoxymethyl and R.sub.3 is hydrogen
And pharmaceutically acceptable acid addition salts thereof. The preparations may additionally contain other agents which are characterized by a maximum light absorption in the erythemal range. Certain novel compounds are disclosed.

REFERENCES:
patent: 2260173 (1941-11-01), Dohrn et al.
patent: 2377188 (1945-05-01), Schwenk et al.
patent: 2583774 (1952-01-01), Hoffman
patent: 2955115 (1960-10-01), Kummeron et al.

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