Specifications
Appearance A white crystalline powder Assay (acidimetric; on anhydrous basis) Min 99% at 200 nm Min 70% at 220 nm Min 90% at 250 nm Min 98% Identity (IR) Conforms Loss on drying (at 120°C) Max 2% pH (10% solution) 5.5 - 7.5 UV transmittance(0.005 mol/L; 1cm; water)