The full name for this pigment is benzimidazone orange; a synthetic organic monoazo pigment. A warm slightly dirty opaque orange with excellent lightfastness.
Benzimidazolones are one of the most recent pigment groups to come on the market. Although their performance matches and exceeds many other pigments in this colour range, Benzimidazolone pigments are unfamiliar to the public in the form of single pigment colours, yet are used by manufacturers of artists paint, where several pigments are blended to create a hue. For example benzi orange has been used to create “portrait” pinks blended with white and naphthol red.