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place of origin : | China |
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Shanghai, Shanghai, China
Product description
ITEMS
|
STANDARDs
|
Appearance
|
White crystals or crystalline powder
|
Assay
|
98% Min
|
Specific Rotation
|
-29.0~ -32.3
|
Loss on Drying
|
0.5% Max
|
Heavy Metals
|
20mg/kg Max
|
Arsenic(As2O3)
|
2mg/kg Max
|
Residue on ignition
|
0.5% Max
|
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Shanghai, Shanghai, China
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