Water-soluble diphenylamine-azo-sulfatoalkoxyphenyl dyestuffs

Abstract

Dyestuffs, which in the form of the free acid of the formula ##STR1## wherein R.sub.1 denotes hydrogen, nitro, cyano, SO.sub.2 --R.sub.7, CONR.sub.8 R.sub.9, SO.sub.2 NR.sub.8 R.sub.9, SO.sub.2 OR.sub.10, COOR.sub.10, SO.sub.2 --NHSO.sub.2 --R.sub.11, sulpho or alkyl, R.sub.2 denotes hydrogen, nitro, halogen or optionally substituted alkyl, alkoxy or aryl, R.sub.3 denotes hydrogen, halogen, SO.sub.2 --R.sub.7, SO.sub.2 --NR.sub.8 R.sub.9 or optionally subsituted alkyl, alkoxy or aryl, R.sub.4 denotes hydrogen, halogen or optionally substituted alkyl, alkoxy or aryl, R.sub.5 denotes hydrogen or optionally substituted alkyl, R.sub.6 denotes alkylene, R.sub.7 denotes optionally substituted alkyl, aryl or aralkyl, R.sub.8 and R.sub.9 denote hydrogen, optionally substituted alkyl, cycloalkyl, aryl or aralkyl or the radical of a heterocyclic compound or, together with the N-atom, denote a heterocyclic structure, R.sub.10 denotes hydrogen or optionally substituted alkyl, aryl or aralkyl, R.sub.11 denotes optionally substituted alkyl or aryl or dialkylamino and n denotes 1 or 2 and The radical O--R.sub.6 --OSO.sub.3 H is in the ortho-position or para-position relative to the azo group, are suitable for the dyeing and printing of the natural and synthetic amide group containing fiber materials.

Dependencies are inferred from the claim text.