USD $0.10-0.10 / Kilogram
USD $1.00-10.00 / Kilogram
USD $1.00-10.00 / Kilogram
usp/bp standard we have gmp
vitamin b6
characteristics |
a white or almost white crystalline powder |
melting point |
about 205 ℃ |
identification |
meets the requirements |
appearance of solutions |
clear,not more intense than y7 |
ph |
2.4~3.0 |
loss on drying |
≤ 0.5% |
sulphated ash |
≤ 0.1% |
heavy metals |
≤ 20ppm |
related substances |
≤ 0.25% |
assay |
99.0%~101.0% |
|
|
identification |
meets the requirements |
loss on drying |
≤ 0.5% |
residue on ignition |
≤ 0.1% |
heavy metals |
≤ 0.003% |
organic volatile impurities |
meets the requirements |
residue solvent- ethanol |
≤ 0.5% |
chloride |
16.9%~17.6% |
assay |
98.0%~102.0% |