Tartrazine (FD&C Yellow No. 5)
CAS Number: 1934-21-0
Tartrazine (FD&C Yellow No. 5, E102) is a water-soluble lemon-yellow azo dye used as a colorant in oral pharmaceutical formulations, food products, and cosmetics. It provides bright, stable coloration and is used at very low concentrations (0.001–0.1%) in tablets, capsules, and liquid preparations. Its use requires declaration on the label in many jurisdictions due to allergy considerations.
Technical Specifications
| assay (%) | ≥85.0 |
| appearance | Orange-yellow powder |
| arsenic (ppm) | ≤3 |
| heavy metals (ppm) | ≤40 |
| loss on drying (%) | ≤15.0 |
| water-insoluble matter (%) | ≤0.2 |
Applications
- Tablet and capsule colorant
- Oral liquid coloring
- Film coating colorant
- Nutraceutical and food coloring
- Topical and cosmetic colorant
Key Features
- Bright lemon-yellow color with high stability
- Water-soluble for liquid formulations
- FD&C and E102 approved colorant
- USP/NF, EP compliant
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CAS Number
1934-21-0
Category
Pharmaceutical ExcipientsAvailability
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