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1 Kilogram |
Negotiable |
Mecobalamin vitaminb12
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Item |
Standard (USP28) |
Test Result |
Appearance |
Red crystals |
Complies |
Assay |
98%~101% |
99.31% |
Clarity in Hexane |
Clear and red |
Complies |
Ordr and taste |
Orderless and tasteless |
Complies |
Solubility |
Freely soluble in ethanol isopropanol, |
Complies |
Sightly soluble in methanol, insoluble in water |
||
Melting point |
31°C~46°C |
38°C |
Water |
<0.5% |
0.41% |
Residue on ignition |
<0.2% |
Complies |
Loss on drying |
≤2.0% |
0.03% |
Heavy metal |
<10ppm |
Complies |
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