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

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

US Patent 8460397 · Granted Jun 11, 2013

Estimated economic value: $49,910,000 ⓘ

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