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2-(3,6,8-trisulfonaphth-2-ylazo)-5-[2-chloro-4-[2-(5-chlo ro-2,4-difluoropyrimid-6-ylamino)-2-methyl-ethyl]amino-1,3,5-triazin-6-yl amino]phenyl urea salts thereof

US Patent 5227476 · Granted Jul 13, 1993

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