"Type: Food Additives Origin: China CAS No.: 22839-47-0 AUCO No.: 506 Packing: 25kg drum" Items Standard Appearance White granular Assay(On dry basis) 98.00-102.00% Specific Rotation +14.50~+16.50 Transmittance 95.0% Loss on drying 4.50% Residue on ignition 0.20% Heavy metal (As pb) 10ppm Lead 1ppm PH 4.50-6.00 Other related substances 2.0% Residual Solvents Meets the Requirements Organic volatile impurities Meets the Requirements 5-benzyl-3,6-dioxo-2-piperazineacetic acid 1.5%