Quinacridone is an organic compound used as a pigment. Numerous derivatives constitute the quinacridone pigment family, which finds extensive use in industrial colorant applications such as robust outdoor paints, inkjetprinter ink, tattoo inks, artists’ watercolor paints, and color laser printertoner. As pigments, the quinacridones are insoluble.[1][2] The development of this family of pigments supplanted the alizarin dyes.