Lemon Yellow (Tartrazine) ranks among the three major synthetic edible colorants and is globally recognised as the most widely‑adopted synthetic food pigment. Its systematic chemical name is trisodium 1‑(4‑sulfonatophenyl)‑4‑(4‑sulfonatophenylazo)‑5‑pyrazolone‑3‑carboxylateEUR-Lex.
Presented as bright‑yellow fine powder or free‑flowing granules, this substance features an azo‑heterocyclic molecular structure. Thanks to its outstanding tinting strength and compliant safety profile, Lemon Yellow delivers reliable colouring performance across diverse sectors. It is extensively utilised not only in food and beverages, but also in pharmaceuticals, cosmetics, animal feed and tobacco, making it a highly versatile colouring solution for multi‑industrial applications
Melting point | 300 °C |
Boiling point | 909.54℃[at 101 325 Pa] |
density | 2.121[at 20℃] |
vapor pressure | 0Pa at 25℃ |
storage temp. | room temp |
solubility | DMSO (Sparingly, Heated), Water (Slightly) |
Colour Index | 19140 |
form | Powder |
color | Orange |
Water Solubility | 260 g/L (30 ºC) |
Sensitive | Hygroscopic |
Merck | 14,9072 |
BRN | 69850 |
Stability: | Stable. Hygroscopic. Incompatible with strong oxidizing agents. |
Biological Applications | Treating hepatitis,periodontal disease,psoriasis |
LogP | -1.572 at 20℃ |
EPA Substance Registry System | Tartrazine (1934-21-0) |
Safety Information
Hazard Codes | Xn |
Risk Statements | 42/43 |
Safety Statements | 22-36/37-45-24/25 |
WGK Germany | 1 |
RTECS | UQ6400000 |
TSCA | Yes |
HS Code | 32129000 |
Hazardous Substances Data | 1934-21-0(Hazardous Substances Data) |
Toxicity | LD50 oral in mouse: 12750mg/kg |
