Vitamin B7 powder, also known as biotin, is a B vitamin that occurs naturally in some foods.
Its molecular structure contains a unique urea ring and a thiamine-like ring, which gives it the ability to participate in complex biochemical reactions.
Vitamin B7, B9 and B12 are all important components of B vitamins and participate in many physiological functions of the human body.
| Product Name：Vitamin B7 | Specification:98% | |
| Items tested | Specifications | Results |
| 1 Appearance | White crystalline powder | Conforms |
| 2 Chromogenic,reaction | Conforms | Conforms |
| 3 Infrared adsorption spectrum | Conforms | Conforms |
| 4 Chloride identification | Conforms | Conforms |
| 5 Loss on drying（%） | ≤0.5% | 0.01% |
| 6 On burning residue | ≤0.1% | 0.01% |
| 7 pH（100g/L Solution） | 6-9 | 7 |
| 8 Arsenic（ppm） | ≤2mg/kg | <2mg/kg |
| 9 Heavy metals（ppm）(Counting by Pb) | ≤10mg/kg | <10mg/kg |
| 10 Assay（%） | 98.0%~100.5% | 100.0% |
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