Vitamin H Vitamin B7 VITAMIN
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Items |
Specification |
Results |
Appearance |
A White or off-white crystalline powder |
Conform |
Content of related substance |
Comply with EP5 |
Conform |
Identification |
Correspond |
Conform |
Clear and colour |
0.01g/ml solution (in 4g/l NaOH) is clear and colourless |
Conform |
Heavy metals |
≤ 10ppm |
< 10ppm |
Sulphated ash |
≤ 0.1% |
0.05% |
Specific Optical Rotation |
+89.0o~ +93.0o |
+89.2o |
Organic volatile impurity |
Meets USP requirement |
Conform |
Assay(Titration, 0.1N NaOH) |
98.5%~100.5% |
99.5% |
Loss on Drying |
≤ 0.5% |
0.1% |
Conclusion: Conforms to USP32/EP6 |
||
Shelf life 3 year from manufacture date |
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