Description Magnesium Phthalocyanine, 90%, 5g For Research & Development Not for drug, human, animal, or food use Certificate of Analysis: Appearance (Color) Blue Appearance (Form) Powder Purity (UV-Vis) 90% Infrared Spectrum Conforms to structureWave Length 665 - 671nm Extinction Coefficient >93000 Carbon 63.0 - 80.2% Nitrogen 18.4 - 23.4% CAS: 1661-03-6 FORMULA: C32H16MgN8