Absorption maximum, lambda max: 614nm                

Absorptivity in acetone: 127 L g^-1 cm^-1

Appearance: blue powder                  

Melting point: 228 – 235°C

Solubility in grams/100 grams of solvent:

            MEK 5.86 grams

            Xylene 0.09 gram

            Cyclohexanone 20 grams