Utilization of derivatives of 2,5-dihydroxyphenylcarboxylic acid

Details Utilization of derivatives of 2,5-dihydroxyphenylcarboxylic acid Utilization of derivatives of 2,5-dihydroxyphenylcarboxylic acid

1995-05-18

1996-12-17

Venkat, Jyothsna

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Cosmetic, antiperspirant, dentifrice

424 62, 424450, 424489, 514844, 514846, 514937, 514938, 514943, 514944, A61K 742

Patent

active

055851053

ABSTRACT:
A cosmetic or dermatological composition with a depigmenting action comprises derivatives of 2,5-dihydroxyphenylcarboxylic acids, their homologs, and their salts, with the derivatives having the following structural formula: ##STR1## wherein: R.sub.1 represents OR.sub.5, OH, or ##STR2## R.sub.5 is a linear or branched C.sub.1 -C.sub.20 alkyl radical, a linear or branched C.sub.2 -C.sub.20 alkenyl radical, or a C.sub.1 -C.sub.20 alkyl radical substituted by one or more hydroxy or alkoxy groups;

REFERENCES:
patent: 4185958 (1980-01-01), Bugaut et al.
patent: 4289495 (1981-09-01), Bugaut et al.
patent: 4484000 (1984-11-01), Howell
patent: 4526779 (1985-07-01), Hashimoto
patent: 4545984 (1985-10-01), Moller et al.
patent: 4835323 (1989-05-01), Howell

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