Substituent Effects on the Colour, Dyeing and Fastness Properties of Trisubstituted 4-N-beta-Hydroxyethyl-N-beta-cyanoethylaminoazobenzenes

The synthesis of a series of 2′,4′,6′-trisubstituted derivatives of 4-N-beta-hydroxyethyl-4-N-beta-cyanoethylaminoazobenzene is reported, and the effect of the nature of the substituents on the colour, dyeing and fastness properties of these dyes is described