Tartrazine Lake
FD&C Yellow 5
- CAS
- 1934-21-0
- EC
- 217-699-5
- Food Code
- E102
- Sectors
- Food & Nutrition, Personal Care & Cosmetics, Pharma & Healthcare
Tartrazine Lake (CAS 1934-21-0) is a synthetic azo colorant in the form of a deep yellow powder; it is an anionic, hydrophilic dye with high water solubility, offered in Food Grade and mainly applied to color confectionery, tablets, capsules and other foods. An anionic, hydrophilic azo dye with an orange-yellow color used in fabrics, foods and cosmetics, and as a biological stain. Tartrazine is mostly used as a colorant in the manufacture of cheese, cake, bubble gum, pudding.
Typical Properties
| Molecular formula | C16H12N4O9S2.3Na |
|---|---|
| Molecular weight | 534.36 g/mol |
| Appearance | Deep yellow powder |
| Form | Powder |
| Color | Orange |
| Melting point | 300 °C |
| Boiling point | 909.54°C[at 101 325 Pa] |
| Density | 2.121[at 20°C] |
| Water solubility | 260 g/L (30 °C) |
| HS code | 32129000 |
| Grades available | Food Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Tartrazine Lake
Applications
Used as pigment in cosmetics, pharmaceuticals, and food for coloring tablets, capsules, and confectionery; in inks and paints for vibrant yellow hues; in textiles for dyeing fabrics; in plastics for coloration; in biological staining for microscopy.
Safety & Risks
May cause allergic reactions or hypersensitivity; GRAS for food use by FDA but restricted in some countries; irritant to skin and eyes; wear safety glasses with side shields (or goggles); do not cut, drill, grind or weld containers.
Packaging
Available in 25kg cartons or drums with inner bags for moisture protection; store in tightly closed containers as per Carl Roth SDS to prevent contamination.