Absorption maximum, lambda max: 546nm                

Absorptivity in acetone: 123 L g^-1 cm^-1

Appearance: red powder             

Melting point: 220 – 225°C

Solubility in grams/100 grams of solvent:

            MEK 7.5 grams

            Xylene 0.005 gram

            Cyclohexanone 4.64 grams