Pigment Blue 15:4 Chemical Name PIGMENT BLUE 15:4 C.I. No. 74160 CAS No. 147-14-8 Synonyms Chromofine Blue,Cyanine Blue 951,Endurophthal Blue GF BT-617-D,Heliogen Blue D,Hostaperm Blue Molecular Formula C32H16CuN8 Molecular Weight 576.07