USD $6.00-9.00 / Gram
USD $3.00-10.00 / Kilogram
USD $5.00-40.00 / Kilogram
USD $5.00-40.00 / Kilogram
USD $5.00-40.00 / Kilogram
USD $5.00-40.00 / Kilogram
USD $5.00-40.00 / Kilogram
USD $5.00-40.00 / Kilogram
USD $5.00-40.00 / Kilogram
we have gmp usp/bp
vitamin b1(thiamine hydrochloride)
appearance |
white or almost white crystalline powder or colourless crystals |
identification |
a:ir absorption b:tests of chloride |
absorbance of solution |
≤0.025 |
limit of nitrate |
no brown ring produced at the junction of the two layers. |
ph |
2.7~3.4 |
water |
≤5.0% |
residue on ignition |
≤0.2% |
chromatographic purity |
≤1.0% |
residual solvent |
methanol:≤0.3% ethanol:≤0.5% |
assay, nitrogen |
98.0%~102.0% |