C.I. pigment red 57

C.I. Pigment Red 57 (CAS 5858-81-1) is a synthetic azo pigment also known as RED 6, D&C Red 6, AKA201, AKA202, and Red 102. It carries no E-code designation and is identified under EC number 227-497-9 with the molecular formula C18H14N2O6S.2Na.

In textile dyeing, it bonds to fibre substrates to deliver deep crimson shades with reliable wash fastness. In printing inks and packaging coatings, its disodium salt structure provides strong colour strength and controlled dispersion across solvent and aqueous systems. Personal care formulators use it to achieve regulated red tones in lip and skin products.

C.I. Pigment Red 57 is supplied as a solid powder and is subject to REACH registration requirements for EU market entry. Cosmetic-grade material must comply with applicable Annex IV restrictions under EU Cosmetics Regulation 1223/2009. Procurement teams should confirm grade specification and batch documentation prior to ordering.