Absorption maximum, λ max: 1071nm  

Absorptivity in acetone: 58 L g^-1 cm^-1

Appearance: brown powder                           

Melting point: 185 – 188°C

Solubility in grams/100 grams of solvent:

            MEK 7.4 grams

            Cyclohexanone 1.55 grams