Magenta metal chelate dyes and their use in ink-jet printers

摘要

A metal chelate of Formula (1) or salt thereof. Formula (1) wherein: R¹ and R² are each independently H or an organic group; M is a metal; p is 1 to 4; Y is an optionally substituted heterocyclic ring with a nitrogen ortho to the azo bridge; G is a substituent; and n is 0 to 5. Also inkjet inks, cartridges and processes.