Ponceau SX

Ponceau SX (CAS 4548-53-2), also known as FD&C Red 4 and E125, is a synthetic azo dye used to impart red coloration.

Where is Ponceau SX used?

• Food and beverage: stable red hue in maraschino cherries, fruit cocktails and certain confectionery items where permitted
• Textile dyeing: colors natural and synthetic fibers
• Leather finishing: uniform surface coloration in decorative and functional leather goods
• Paper and packaging: colored paper stocks
• Specialty printing substrates requiring defined red tones
• It is also utilized in specialty printing substrates requiring defined red tones.

Good to know: Approved under distinct regulatory frameworks in different markets; food-grade specifications align with FD&C and European regulatory standards, while technical grade is for non-food industrial use.

Commercial specifications

• Bulk quantities in fiber drums or multi-layer bags
• Smaller packaging for laboratory and formulation development