C.I. pigment yellow 151

C.I. Pigment Yellow 151 (CAS 31837-42-0, EC 250-830-4) is a monoazo benzimidazolone organic pigment with the colour index designation C.I. 13980. It is commercially available under trade names including Ket Yellow 416, Fast Yellow H4G, and Dominion DCC-7151. No E-code applies to this substance.

In printing inks and packaging coatings, PY151 delivers strong yellow hue with good lightfastness and heat stability, making it suitable for high-speed offset and flexographic processes. In plastics and polymer compounding, it provides colour consistency under processing temperatures where less stable pigments would degrade. Its surface-active character supports wetting and dispersion in both aqueous and solvent-based systems.

PY151 is supplied as a dry powder and is subject to REACH registration requirements within the European Economic Area. Buyers should request a current Safety Data Sheet and confirm compliance documentation prior to procurement. Standard packaging formats vary by supplier; bulk and drum quantities are typically available.