Trisazo compounds containing a diphenyl-tetrazinyl component

Details Trisazo compounds containing a diphenyl-tetrazinyl component Trisazo compounds containing a diphenyl-tetrazinyl component

1974-03-13

1976-04-20

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260241, 424244, C09B 3534, D06P 304, D06P 324, D06P 360

Patent

active

039519414

ABSTRACT:
A polyazo dye represented by the formula ##SPC1##
Wherein A is an aromatic ring having or not having a substituent, B is an aromatic ring having at least one substituent selected from the group consisting of amino, substituted amino and hydroxyl, Y is hydrogen, alkali metal, --NH.sub.4 or an amine salt residue, n is 1 or 2, and each of R.sup.1 and R.sup.2 is hydroxyl or amino, R.sup.1 being amino when R.sup.2 is hydroxyl and hydroxyl when R.sup.2 is amino. The polyazo dye has outstanding utility in the dyeing of fibers having hydroxyl and/or amide groups and are not carcinogenic.

REFERENCES:
patent: 482106 (1892-09-01), Ulrich et al.
patent: 2195786 (1940-04-01), Schmid
patent: 2842538 (1958-07-01), Byland
patent: 2871230 (1959-01-01), Huss et al.
patent: 2941991 (1960-06-01), Byland

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