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Home › Water-soluble triphendioxazine compounds and precursors thereof containing sulfonyl groups, processes for their preparation and the use of the triphendioxazines as dyestuffs

Water-soluble triphendioxazine compounds and precursors thereof containing sulfonyl groups, processes for their preparation and the use of the triphendioxazines as dyestuffs

US Patent 5112970 · Granted May 12, 1992

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