| abstract |
A compound of Formula (1) or a salt thereof: Formula (1); wherein: X and Y are each independently a substituent; G is optionally substituted C1-12-alkylene; M is a metal; n is 0 to 6; p is 0 to 3; R1 is optionally substituted C1-8-alkyl, optionally substituted C5-8 cycloalkyl, optionally substituted aryl or an optionally substituted heterocycle; and R2 is H, or C,1-4-alkyl; provided that R1 is free from carboxy groups. Also an ink-jet printing ink, an ink-jet printing process, a printed material and an ink jet printer cartridge. |