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Home › Oxidative dyeing compositions comprising an 1-hexyl/heptyl-4,5-diaminopyrazole and a 2-aminophenol and derivatives thereof

Oxidative dyeing compositions comprising an 1-hexyl/heptyl-4,5-diaminopyrazole and a 2-aminophenol and derivatives thereof

US Patent 8444709 · Granted May 21, 2013

Estimated economic value: $48,206,000 ⓘ

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