2,6-Dihydroxy-3-cyano-4-methylpyridine containing azo dyes which

Details 2,6-Dihydroxy-3-cyano-4-methylpyridine containing azo dyes which 2,6-Dihydroxy-3-cyano-4-methylpyridine containing azo dyes which

1973-09-07

1976-06-29

Jiles, Henry R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260153, 260154, 260155, C07B 2936

Patent

active

039667065

ABSTRACT:
Basic azo dyestuffs of the general formula ##SPC1##
Wherein D denotes the residue of a diazo component which may contan an azo group and which contains at least one amino, hydrazino or etherified hydroxylamino group that may be quaternated are valuable dyestuffs for dyeing and printing synthetic fibres distinguished by a good fastness to light and a very good fastness to sublimation.

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patent: 3661886 (1972-05-01), Hegar
patent: 3664996 (1972-05-01), Berrie et al.
patent: 3725383 (1973-04-01), Austin et al.

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