Pigment yellow 73

Pigment Yellow 73 (CAS 13515-40-7), sold commercially as Hansa Brilliant Yellow 4GX and Hancock Yellow 73, is a monoazo organic pigment delivering a bright, greenish-yellow hue.

Where is Pigment yellow 73 used?

• Plastics and polymer processing: coloring polyolefins, PVC, and engineering resins
• Coatings: architectural, industrial, and decorative paints requiring clean yellow shades at moderate cost
• Printing inks: offset, flexographic, and packaging inks for brightness and printability on paper and board
• Textile and leather finishing: pigment printing pastes and surface coatings for yellow tones on fabric and treated leather goods
• It provides strong tinting strength and compatibility with multiple substrate types.

Good to know: Consistent batch-to-batch hue is critical for product specification. Manufactured to industrial requirements rather than pharmacopeial standards such as USP, FCC, Ph. Eur., BP, EP, or ACS.

Commercial specifications

• Dry powder, standard commercial form for dispersion into solvent-borne, water-borne, and UV-curable systems
• Press cake forms available from select suppliers for wet dispersion in ink and coating production