This is the chlorinated form of phthalocyanine blue which has an brilliant green shade. It is extremely clean shade with very good fastness properties. One the most stable form of organic pigments. It is used for various applications like paint, ink, plastics (master batch and fiber grade), rubber, textile, paper etc.
Blue 15:4 is the NC version of 15:3 with excellent flow and thixotropic properties for solvent based applications like excellent product for solvent based inks applications like Nitro Cellulose, Poly Amide. Poly Urethane etc.
It is used as an intermediate to manufacture dyes and pigments for various applications.