Water soluble
Recommended pH 7-9
Monovalent amminium dye
Peak wavelength, l max: 970 nm
Absorptivity in deionized water: 20 L g-1 cm-1
Appearance: green-black powder
Melting point: > 250oC
Solubility in grams/100 grams of solvent:
Deionized water >20 grams