Absorption maximum, λ max: 990nm                

Absorptivity in acetone: 60 L g^-1 cm^-1   

Appearance: green powder                

Melting point: 108 – 112°C

Solubility in grams/100 grams of solvent:

            MEK >6.0 grams

            IPA 0.14 grams

            Ethyl acetate 2.6 grams

            THF >6.0 grams

            Cyclohexanone >6.0 grams