Acid Yellow 23 is a common synthetic food dye, also known as Tartrazine, belonging to the azo dye class.

The following is a detailed introduction about the dye:

1. Basic information

-Chemical name: Acid Yellow 23
-International code: E102 (EU food additive code)
-CAS number: 1934-21-0
-Molecular formula: C ₁₆ H ₉ N ₄ Na ∝ O ₉ S ₂
-Appearance: Orange yellow powder, easily soluble in water.

2. Application Fields

-Food industry: widely used in beverages (such as carbonated drinks, sports drinks), candies, ice cream, jelly, sauces, canned goods, etc., providing a bright yellow color.
-Medicines and cosmetics: used for tablet coating, capsules, toothpaste, shampoo, etc.
-Other uses: textile dyeing, paper coloring, etc. (non food grade uses need to be distinguished).