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US07794509B2 Tricationic dyes 有权
化学染料

Tricationic dyes
摘要:
Disclosed are tricationic dye compounds, useful for dyeing hair, wool, leather, silk, cellulose or polyamides. The dye compounds are of formula (1), where the groups are as defined in the specification and claims. [D-E1=E2-K]3+(An1−) (An2−) (An3−)   (1)
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