6,15-Dihydroanthrazine-5,9,14,18-tetrone
Caution
CAS Number: 81-77-6
About 6,15-Dihydroanthrazine-5,9,14,18-tetrone
A synthetic anthraquinone dye (Perylene tetracarboxylic diimide) used as a blue-violet pigment, restricted in EU due to environmental hazard classification.
Detailed Analysis
This synthetic anthraquinone derivative is used as a vat dye and pigment in hair care and decorative cosmetic formulations. Under EU Regulation 1223/2009 Annex III, the substance is restricted to concentrations below 0.1% as a constituent of substances or mixtures. It carries hazard statements H412 (harmful to aquatic life with long lasting effects) and H413 (may cause long lasting harmful effects to aquatic life), indicating significant environmental concerns that limit its use in cosmetic formulations.
Skin Benefits
- ✓ Provides blue-violet coloration in hair dyes
- ✓ Used as pigment in decorative cosmetics
Known Concerns
- ⚠ Restricted to <0.1% in EU mixtures
- ⚠ Environmental hazard - aquatic toxicity (H412/H413)
- ⚠ Limited approval for rinse-off products only
Safety Score
Caution
Based on EU regulatory data, published safety research, and ingredient function analysis.
References
EU CosIng Database
European Commission cosmetic ingredient registry
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