Natural dyes based on chlorophyll and protoporphyrin derivatives

The utility of natural dyes (chlorophyll, protoporphyrin, and their derivatives) as ecologically pure new-generation dyes that are safer than common synthetic arene-based dyes is discussed. New dyes were obtained from chlorophyll and protoporphyrin derivatives such as pheophorbide (a+b), chlorin e₆, 6-N-(2-aminoethylamido)chlorin e₆ dimethyl ester, and 6-N-(2-aminoethylamido)deuteroporphyrin methyl ester and tested in coloration of wool, cotton, and acetate fibers.