4,4'-Diazobenzanilide Dyestuffs

A 4,4′-diazobenzanilide derivative of the formula

• in which
• A1 represents phenyl or 1- or 2-naphthyl, whereby phenyl can be unsubstituted or mono- or disubstituted with sulfo, C1-4-alkyl, C1-4-alkoxy, C2-4-hydroxyalkoxy, halogen, hydroxy, amino, acetamido, ureido or carboxy, and whereby 1- or 2-naphthyl can be unsubstituted or substituted with one or more sulfo groups, and
• A2 represents a residue selected from the group consisting of
• in which
• Z1 represents C1-4-alkyl or phenyl, whereby phenyl may be unsubstituted or mono-substituted with C1-4-alkyl, C1-4-alkoxy or halogen, and
• Z2 represents phenyl or 1- or 2-naphthyl, whereby phenyl may be unsubstituted or mono-, di- or trisubstituted with sulfo, C1-4-alkyl, C1-4-alkoxy, C2-4-hydroxyalkoxy, halogen, hydroxy, amino, acetamido, ureido or carboxy and whereby 1- or 2-naphthyl may be unsubstituted or mono- or disubstituted with sulfo or carboxy,
• Y represents O, N—CN or N—CONH2,
• Q1 represents hydrogen, hydroxy, C1-2-alkyl, hydroxyethyl, C1-2-alkoxy, carboxy, carbamoyl, C1-2-alkoxycarbonyl, and
• Q2 represents hydrogen, cyano, halogen, sulfo, C1-2-alkyl, or carbamoyl whereby C1-2-alkyl may be unsubstituted or substituted with hydroxy, phenyl or sulfo, and
• Q3 represents hydrogen, phenyl, C1-2-alkylphenyl, C1-4-alkyl, whereby C1-4-alkyl may be unsubstituted or substituted with hydroxy, cyano, C1-2-alkoxy or sulfo, and
• Q4 represents hydrogen or hydroxy,
• R5 represents hydrogen, C1-4-alkyl, C2-4-alkenyl, carboxy, NHCOC1-4-alkyl, and
• R6 and R7 each independently from each other represent hydrogen, halogen, sulfo, C1-4-alkyl or carboxy, and
• R8 represents hydrogen or C1-4-alkyl,
• R9 represents hydrogen, C1-4-alkyl, and
• R10 represents hydrogen or hydroxy,
• R11 and R12 each independently from each other represent hydrogen, C1-4-alkyl, C1-4-alkoxy, hydroxy, halogen, amino, acetamido, sulfo, carboxy, C1-4-alkoxycarbonyl or C1-4-alkylaminocarbonyl, and
• R2 represents hydrogen, C1-4-alkyl, C1-4-alkoxy, halogen, hydroxy, carboxy, acetamido, ureido or sulfo, whereby C1-4-alkyl and C1-4-alkoxy may be unsubstituted or substituted with halogen, hydroxy, carboxy, acetamido, ureido or sulfo, and
• R3 and R4 each independently from each other represent hydrogen, C1-4-alkyl, C1-4-alkoxy, halogen, hydroxy, carboxy, amino, C1-4-alkylamino, acetamido or ureido, whereby C1-4-alkyl and
• C1-4-alkoxy may be unsubstituted or substituted with halogen, hydroxy, carboxy, amino, C1-4-alkylamino, acetamido or ureido, and
• R1A represents a residue selected from the group consisting of
• in which
• n≧1,
• A1, A2, R2, R3 and R4 have the meaning as indicated above, and
• X represents C2-14-alkylene, whereby a —CH2CH2CH2— unit of C2-14-alkylene may be replaced by a —CH2-E-CH2— unit, in which E represents O, NH or S.