1.Product Name: pure vitamin b12 pharmaceutical grade VB12 with factory direct sales
2.CAS NO: 68-19-9
3.Purity:98.5%
4.Appearance: Dark red crystalline power
5.HS Code: 29362600
6.Specification:
Item Specification
Description Dark red crystalline powder, have no smelly and tasteless;Hygroscopicity
Identification Positive
Ratio Absorbances A361nm/A278nm: 1.70-1.90
A361nm/A550nm: 3.15-3.40
Pseudo Cyanocobalamin Complies
Loss on drying ≤12.0%
Assay on dried 96.0~100.5%
Bacteria ≤1000cfu/g
Mould,Yeasts ≤100cfu/g
E Coli No found
Limit of residual solvents Acetone≤0.5%
Conclusion Conform to Complies with USP.34
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