Sandoz Gmbh

Markus Doerr

Roland Wald

Helmut A Moser

Markus Gisler

Werner Koch

Paul Doswald

Kurt Brenneisen

Gunther Auerbach

Fibre-reactive monoazo compounds of the formula ##STR1## which compounds are in free acid or salt form, and mixtures thereof, are useful for dyeing or printing hydroxy group- or nitrogen-containing organic substrates, for example leather and fibre material comprising natural or synthetic polyamides or natural or regenerated cellulose; the most preferred substrate is a textile material comprising cotton.

Fibre-reactive monoazonaphthyl dyestuffs

Metal-free compounds of the formula ##STR1## a 1:1 or 1:2 metal complex of a metallizable compound of said formula or a salt of a metal-free compound of said formula or of a 1:1 or 1:2 metal complex thereof each cation of which is independently a non-chromophoric cation, or a mixture, thereof, wherein

Dyes having one or two 2,4- or 4,6-dichloro-5-cyanopyrimidyl groups

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Hartheim, Germany

Markus Doerr