(C.I. Solvent red 111)

Molecular formula: C₁₅H₁₁NO₂ 
Molecular weight: 237.25
CAS number : 82-38-2
Structural formula:

Appearance: Dark red powder
Shade: Approximate
Tinting strength: ±5%
Weight loss (105°C): ≤1.5%
Water solubles: ≤1.5%