RED 102G is a synthetic azo dye used primarily as a food coloring and industrial pigment. 

Chemical and Product Specifications

the substance is a dark red powder or solid that is highly soluble in water.

Chemical Name: Trisodium 7-hydroxy-8-(4-sulfonato-1-naphthylazo)naphthalene-1,3-disulfonate.

Color Index (C.I.): 16255.

CAS Number: 2611-82-7.

Molecular Weight: 604.46–604.47.

Form: Typically sold as neat powder or granules with a purity often exceeding 80%.

Common Applications

Food and Beverages: Used in candies, soft drinks, desserts, and processed fish to provide a red to dark red hue.

Industrial Pigments: Often categorized under Pigment Red 102, it is used as a red oxide colorant in construction materials like bricks, concrete blocks, and roofing tiles.

Laboratory Use: High-purity versions are sold for professional manufacturing and research purposes only.

Safety and Regulations

The European Food Safety Authority (EFSA) has established an Acceptable Daily Intake (ADI) for this colorant.

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Health Concerns: Like other azo dyes, it has been linked to hyperactivity in children when combined with certain preservatives (e.g., sodium benzoate).

Allergic Reactions: It may cause sensitivity in individuals who are asthmatic or intolerant to aspirin.

Restrictions: While permitted in many regions including the EU and Canada, it is subject to strict labeling requirements and may be restricted in others, such as the United States (where it is not listed as a standard FD&C food color).