Product: Evan's Blue C.A.S. No.: 314-13-6 CI NO.: 23680 M.F.: C34H24N6Na4O14S4 M.W.: 960.82gm/mole Specifications: Dye Content (by Spectrophotometry) = >85% Solubility 0.1 % (Dist. Water) = Clear solution Absorption maximum (Dist. water) ?max = 605-611nm Absorptivity (A1% 1cm in water, at ?max, on dried substance) = >800 Loss On Drying (110�°C) =