5,12-Dihydroquino[2,3-b]acridine-7,14-dione
Other
Moderate
CAS Number: 1047-16-1
About 5,12-Dihydroquino[2,3-b]acridine-7,14-dione
5,12-Dihydroquino[2,3-b]acridine-7,14-dione is a cosmetic ingredient used in product formulations. Its specific function may vary depending on the product type and formulation. Exercise caution due to limited available safety data.
Detailed Analysis
5,12-Dihydroquino[2,3-b]acridine-7,14-dione (CAS 1047-16-1, PubChem CID 13976), also known as Quinacridone Violet or CI 73360/74100, is a synthetic organic pigment. EU CosIng Annex IV restricts this pigment to rinse-off cosmetic products only, citing insufficient safety data for leave-on or mucous membrane applications. While not a sensitizer in standard testing, the restriction reflects the precautionary approach applied to many colorants whose long-term skin exposure profiles are not fully characterized.
Known Concerns
- ⚠ Restricted to rinse-off products only per EU CosIng Annex IV
- ⚠ Insufficient long-term leave-on safety data
- ⚠ Not permitted in products applied on mucous membranes
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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