Direct hair dye compositions and methods containing novel anthraquinone mixtures
 An anthraquinone mixture comprising three 1,4-hydroxyalkylamino-anthraquinone derivatives, wherein two of the anthraquinone compounds in the mixture are symmetric and the other anthraquinone compound is asymmetric, and wherein each of the anthraquinone compounds has similar polarities. The anthraquinone mixtures are used in compositions and methods for the direct dyeing of keratinous fibers, particularly human hair on the head. 
Bristol-Myers Squibb Company
A A C C A A A
A61Q A61K C09B C09B A61K A61Q A61K
inventional inventional inventional inventional additional inventional inventional
James S.
Anderson