Characteristics: White powder CAS NO.: 22839-47-0 Taste: Pure Assay(On dry basis) 99.60% Specific Rotation[α]20D +15.35 Transmittance 98.0% Loss on drying 2.21% Heavy Metals (as Pb) less than 10PPM pH data 5.27 Arsenic(as As) less than 3PPM Residue on ignition 0.15% 5-Benzyl-3, 6-dioxo-2-Piperazi neacetic Acid less than1.5% Other related substances less than 2.0% Conclusion: Complies with FCCIV standard