| http://www.w3.org/ns/prov#value | - c) as reactive dye of the formula (4), the dye of the formula ##STR11## in which R4 is hydrogen or C1 -C4 alkyl, R5 is hydrogen, C1 -C4 alkyl, C1 -C4 alkoxy or C2 -C4 alkanoylamino, R6 is hydrogen, C1 -C4 alkyl, C1 -C4 alkoxy or halogen, X is a direct bond or a radical of the formula --CONHCH2 CH2 --, benzene ring C is unsubstituted or substituted by C1 -C4 alkyl, C1 -C4 alkoxy or halogen, and the
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