Absorption maximum, λ max: 993nm                

Absorptivity in acetone: 56 L g^-1 cm^-1

Appearance: green powder                

Melting point: 116 – 120°C

Solubility in grams/100 grams of solvent:

            MEK 5.19 grams

            Xylene 0.39 grams

            Cyclohexanone 4.61 grams

            Methylene Chloride 7.34 grams