Water-soluble yellow azo dyes

A recording fluid for recording text and images on recording media comprising at least one dye of the formula (2)

• wherein
• A and B are identical or different and are a C6-C10-aryl radical unsubstituted or substituted by 1, 2, 3 or 4 substituents selected from the group consisting of C1-C6-alkyl, hydroxyl, C1-C6-alkoxy, carboxyl, sulfo, sulfonamide, amino and C1-C6-alkylamino;
• or are a 5- to 7-membered aromatic heterocycle which, optionally, is benzo-fused and optionally carries 1, 2, 3 or 4 of the aforementioned substituents selected from the group consisting of C1-C6-alkyl, hydroxyl, C1-C6-alkoxy, carboxyl, sulfo, sulfonamide, amino and C1-C6-alkylamino;
• Y is a group which contains oxygen and/or nitrogen and, optionally, via X of the enolate function forms a 9- or 10-membered ring;
• X is hydrogen, a monovalent metal cation, one equivalent of a polyvalent metal cation or a C1-C4-alkyl-, phenyl- or (C1-C4)-alkoxy-(C1-C4)-alkyl-substituted ammonium ion.