Customization: | Available |
---|---|
CAS No.: | 74-79-3 |
Formula: | 74-79-3 |
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Item
|
Quality Standard
|
Appearance
|
White crystals or crystalline powder
|
Identification
|
Conforms
|
Specific rotation
|
+26.9°~ +27.9°
|
State of solution
|
≥98.0%
|
Chloride(Cl)
|
≤0.020%
|
Ammonium(NH4)
|
≤0.02%
|
Sulfate (SO4)
|
≤0.020%
|
Iron(Fe)
|
≤10ppm
|
Heavy metals (Pb)
|
≤2ppm
|
Arsenic(As2O3)
|
≤1ppm
|
Other amino acids
|
Conforms
|
Loss on drying
|
≤0.5%
|
Residue on ignition
|
≤0.10%
|
Assay
|
99.0%~101.0%
|
pH
|
10.5~12.0
|