Pigments & Colorants
REACH
2',4',5',7'- tetrabromofluorescein
CAS Number
15086-94-9
EC Number
239-138-3
What is 2',4',5',7'- tetrabromofluorescein?
2',4',5',7'-Tetrabromofluorescein (CAS 15086-94-9), also known as D&C Red #21, is a brominated xanthene dye approved for cosmetic and personal care formulations.
Where is 2',4',5',7'- tetrabromofluorescein used?
- Cosmetics: pink-to-red fluorescent tone in lip products, blushes and nail preparations
- Polymer compounding: coloration and halogen-based flame retardancy in a single additive
- Textile and paper processing: surface-active colorant for even dye distribution
- Printing and packaging inks: vivid fluorescent hues for high-visibility or decorative end uses
- It also serves as a functional additive in polymer and textile systems where color and flame-retardant properties are required simultaneously.
Commercial specifications
- Packaging from kilogram quantities to bulk drum supply
Other Names (Synonyms)
D&c red #21|2',4',5',7'-tetrabromo-3',6'-dihydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one|Red 21
What are the physical properties of 2',4',5',7'- tetrabromofluorescein?
Melting Point 300 °C
Boiling Point 640.3±55.0 °C(Predicted)
Density 1.02 g/mL at 20 °C
Appearance orange-brown powder
Color White to Light yellow to Red
Form Liquid
Refractive Index 1.5000 (estimate)
How is 2',4',5',7'- tetrabromofluorescein classified and handled safely? Learn More
Warning
GHS07· Irritant
Hazard Statements
H302 Harmful if swallowed
Precautionary Statements
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P330 Rinse mouth.
P501 Dispose of contents/container in accordance with local regulations.
P301+P317 Get emergency medical help.
Which trade and regulatory codes apply to 2',4',5',7'- tetrabromofluorescein?
HS Code 32041919
UN Number 1170
ADR Class 3
Packing Group II
WGK (Germany) 3