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Home › Sulfo group-free disazo and polyazo compounds containing two 1-phenylpyrazol-5-one coupling component radicals and at least two basic or cationic groups

Sulfo group-free disazo and polyazo compounds containing two 1-phenylpyrazol-5-one coupling component radicals and at least two basic or cationic groups

US Patent 4483796 · Granted Nov 20, 1984

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