Allura Red Lake (FD&C Red No.40 Al Lake) CAS 68583-95-9

Allura Red Lake (FD&C Red No.40 Al Lake) – Versatile Aluminum-Based Pigment

Basic Information

• CAS Number: 68583-95-9

• Molecular Formula: C₁₈H₁₉AlN₂O₈S₂

• Appearance: Red fine powder

• Solubility: Insoluble in water; dispersible in organic media

• Stability: Heat-stable, light-resistant, and non-migrating

Overview
Allura Red Lake is the aluminum lake form of Allura Red AC (FD&C Red No.40), a synthetic azo dye. The pigment is produced by precipitating the dye onto an aluminum hydroxide substrate, resulting in a water-insoluble, stable colorant. This form provides excellent color intensity, heat stability, and resistance to bleeding, making it suitable for a wide range of applications where water-soluble dyes are not appropriate.

Applications

1. Food products: Used in dairy products, meat products, baked goods, noodles, flavorings, and confectionery for consistent red coloration.

2. Pharmaceuticals: As a colorant in health supplements, tablets, capsules, and pharmaceutical excipients.

3. Industrial production: Applied in petroleum, manufacturing, agricultural products, battery components, and precision casting.

4. Tobacco: Used as a substitute for glycerin in tobacco flavoring, antifreeze, and humectant applications.

5. Cosmetics: Incorporated in creams, makeup water, shampoos, masks, and other personal care products for stable color.

6. Animal feed: Added to pet food, livestock feed, aquatic feed, vitamin supplements, and veterinary products.

Key Properties

• High color strength and purity.

• Insoluble in water – prevents bleeding and migration in multi-phase systems.

• Excellent heat and light stability – suitable for high-temperature processing.

• Compatible with various substrates and formulations.

• Complies with regulatory standards for food, pharmaceutical, and cosmetic use.

Handling and Storage

• Store in a cool, dry, well-ventilated area, away from direct sunlight and moisture.

• Keep containers tightly sealed to prevent contamination.

• Use appropriate personal protective equipment (dust mask, gloves, safety goggles) when handling.

Packaging
Available in 1 kg, 5 kg, 25 kg, and 50 kg containers (bags, drums). Custom packaging upon request.

Quality Assurance
Each batch is tested for color intensity, purity, heavy metals, and particle size distribution to ensure consistent quality and regulatory compliance.