| abstract |
The present invention relates to a whitening composition containing, as an active ingredient, a benzaldehyde thiosemicarbazone derivative having the following formula, which is superior to arylthiourea. Where R 1 is cyclohexyl; C 1 ~ C 6 alkyl, C 1 ~ C 6 alkoxy, halogen, or C 1 ~ C 6 alkyl amine is a substituted phenyl; Hydrogen, C 1 -C 6 alkyl, or halogen substituted naphthalene; R 2 is H; C 1 -C 6 alkyl; Phenyl; Naphthalene; |