Description
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Appearance White crystals or
crystalline powder
aftertaste Tasteless
Specific Rotation +6.3?+7.3
Heavy metals (as Pb) ≤10PPM
Loss on drying ≤0.30%
Residue on ignition ≤0.1％
Arsenic ≤1PPM
Assay (dry basis) 98.5~101.0%
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