Synthetic indicator dye
Phenol, 4,4'-(4,5,6,7-tetrabromo-1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[2,6-dibromo-
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
Tetrabromophenol blue, a heavily brominated indicator dye with serious eye damage and aquatic toxicity flags. Not on the EU cosmetic colorant list and best avoided in personal care.
Skin benefits
- Tetrabromophenol blue indicator dye historically used as a colorant
- High color strength at low concentrations
- Used historically in some color cosmetics and indicators
- Long industrial track record
Known concerns
- PubChem GHS: H318 causes serious eye damage
- PubChem GHS: H412 harmful to aquatic life with long-lasting effects
- Highly brominated phenol structure raises bioaccumulation flags
- Not on EU Annex IV permitted cosmetic colorant list
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Check your shelf
Find Phenol, 4,4'-(4,5,6,7-tetrabromo-1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[2,6-dibromo- in your products.
Scan any cosmetic product with LuxSense to see if it contains Phenol, 4,4'-(4,5,6,7-tetrabromo-1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[2,6-dibromo- and get a full ingredient breakdown with safety scores.
This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.