What is "phthalocyanine green g"

Phthalocyanine Green G, also called phthalo green, Viridian Hue, Pigment Green 7, Copper Phthalocyanine Green, C.I. Pigment Green 7, Non-flocculating Green G, Polychloro copper phthalocyanine, or C.I. 74260, is a synthetic green pigment from the group of phthalocyanine dyes, a complex of copper(II) with chlorinated phthalocyanine. It is a very soft green powder insoluble in water.

Its CAS numbers are and depending on the extent of chlorine substitition: chemical formula ranges from CHClCuN to CHClCuN. It is a bright, high intensity colour used in oil and acrylic based artist's paints, and in other applications.