Hydroquinone, Photo Grade, Powder, 99+%, 50g

Hydroquinone, Photo Grade, 99+%, 50g For Research & Development Not for drug, human, animal, or food use Specifications: Assay, % 99.40-101.00 Water (Karl Fischer), %0.60 Maximum Iron (as Fe),ug/g 10 Maximum pH 4.10-4.70 Yellowness Index 35.0 Maximum Absorptivity @700 nm, mL/g-cm 0.070 Maximum Absorptivity @ 520 nm, mL/g-cm 0.120 Maximum Absorptivity @ 455 nm, mL/g-cm 0.190 Maximum Appearance Free-Flowing White Crystals CAS: 123-31-9 FORMULA: C6H4-1,4-(OH)2