| http://www.w3.org/ns/prov#value | - h) dyes of the formula (16) in which X is a direct bond or a radical of the formula --CONHCH2 CH2 --, and benzene rings A, B, C and D, in particular only benzene rings A and D, independently of one another, are unsubstituted or substituted by C1 -C4 alkyl, C1 -C4 alkoxy or halogen;
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