Hydroquinone, Photo Grade, Powder, 99+%, 1kg

Hydroquinone, Photo Grade, Powder, 99+%, 1kg
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