5,12-Dihydro-2,9-dimethylquino[2,3-b]acridine-7,14-dione
Other
Moderate
CAS Number: 16043-40-6; 980-26-7
About 5,12-Dihydro-2,9-dimethylquino[2,3-b]acridine-7,14-dione
A synthetic quinacridone pigment used as a colorant in rinse-off cosmetic products. Generally stable with low solubility.
Detailed Analysis
This quinacridone derivative (CI 73915) is a polycyclic organic pigment with high chemical stability and extremely low aqueous solubility. It is permitted as a colorant in rinse-off cosmetic products. Quinacridone pigments are considered relatively inert, though their use is restricted to rinse-off formulations as a precautionary measure due to limited long-term dermal exposure data.
Known Concerns
- ⚠ restricted to rinse-off products only
- ⚠ limited safety data for leave-on use
Safety Score
Moderate
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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