Phthalocyanine Green 7 is the second most common type of colourant which is widely used. This is traditionally used as blue and green pigments in automobile paints and printing inks, as well as blue/cyan dyes for textiles and paper. It has a vivid bluish-green color. This is very easy to use and simple to handle. Phthalocyanine Green 7 is used in chemical dyes and photoelectricity. It's made up of four isoindole units connected by a nitrogen ring. This is a one-of-a-kind substance that is with chlorine atoms replace most of the hydrogen atoms.