China Biotin Feed Grade CAS 58/85/5; 22879/79/4, Find details about China CAS 58/85/5, D (+) -Biotin from Biotin Feed Grade CAS 58/85/5; 22879/79/4
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 |