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Home › 1-hexzl-1H-pyrazole-4,5-diamine hemisulfate, and its use in dyeing compositions

1-hexzl-1H-pyrazole-4,5-diamine hemisulfate, and its use in dyeing compositions

US Patent 8784505 · Granted Jul 22, 2014

Estimated economic value: $48,670,000 ⓘ

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