Abstract: Compounds of the general formula (I) wherein R1 represents hydrogen or a C1-C4-alkyl group, X represents the radical of aliphatic, cyclic or aromatic diamines and Y represents hydrogen or an alkali metal, and a process for their preparation and their use for dyeing organic substrates, and organic substrates dyed with these compounds.

Abstract: The invention is concerned with compounds according to the formula ##STR1## and their salts, whereinX represents hydrogen or chloro,R.sub.1 and R.sub.3 represent hydrogen or methyl,R.sub.2 and R.sub.4 represent hydrogen, methyl or methoxy, andR.sub.5 represents hydrogen or C.sub.1-4 alkyl,which are useful as fiber-reactive dyestuffs in dyeing and printing hydroxy-group-containing as well as nitrogen-containing organic substrates and for the preparation of printing inks which are suitable for the ink jet process.

Abstract: Fibre-reactive asymmetrical triphenodioxazine compounds conform to the formula I ##STR1## where the individual symbols are as defined in the description, and mixtures thereof and are present in the form of a free acid or as salt. They are used as reactive dyes for dyeing or printing hydroxyl-containing or nitrogenuos organic substrates, such as leather or fiber material consisting of or comprising natural or synthetic polyamides or natural or regenerated cellulose; the most preferred substrate is textile material consisting of or comprising cotton.