Magenta dyes and inks for use in ink-jet printing

摘要

A composition comprising: (a) a compound of Formula (1) wherein: R¹, R², R³ and R⁴ independently are substituents; m and p independently are 0 to 3; and n and q independently are 0 to 2: provided that the compound of Formula (1) comprises at least one water solubilising group; and (b) a liquid media. Also novel compounds and ink-jet printer inks, processes and cartridges.