Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Patent
1988-04-22
1991-02-05
Rollins, John W.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
514844, A61K 3135
Patent
active
049905325
ABSTRACT:
External preparations containing, as active ingredient, kojic acid purified by sublimation show higher stability against discoloration with the passage of time compared with conventional products containing otherwise purified kojic acid.
REFERENCES:
Chem. Abst. 89:4582b, 1978.
Rollins John W.
Sansho Seiyaku Co., Ltd.
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