Dyeing of surface coatings, organic solvents and petroleum products

摘要

A process for dyeing surface coatings, organic solvents and petroleum products, wherein the dye used is a compound of the general formula I I where R is C1-C17-alkyl, which may or may not be interrupted by oxygen and may or may not be substituted by hydroxyl or phenoxy, or is allyl, R1 is hydrogen or C1-C8-alkyl, R2 is C1-C12-alkyl which may or may not be interrupted by oxygen and may or may not be substituted by hydroxyl or phenoxy, or is C7-C11-aralkyl, X is hydrogen, chlorine, bromine, methyl or methoxy, Y is hydrogen, methyl or chlorine and R1 and R2 may also together be the radical