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Specification: 98%, 99%
Botanical Name: Uva ursi
Appearance:White crystalline powder
Mesh: 80
Loss on drying% ≤1.0
Ignition residue: ≤0.5%
Melting point: 203~206±1°C
Specific optical rotation: D20=+176~184º
Clarity of water solution: Transparency, colorless, nonesuspended matters
pH value of 1% aqueoussolution: 5.0~7.0

Storage and shelf life
Storage: 1kg foil bag, 25kg/drum ,double plastic bags for inner packing and carton drum for outer packing
Stored conditions: Cool&dry place. Do not freeze. Keep away from strong light and heat
Shelf time: 3 years when stored properly