USD $10.00-10.00 / Kilogram
USD $10.00-10.00 / Kilogram
USD $10.00-10.00 / Kilogram
USD $10.00-10.00 / Kilogram
USD $10.00-10.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $9.00-99.00 / Kilogram
USD $9.00-99.00 / Kilogram
product name: 99% galanthamine hydrobromide
cas no: 357-70-0
molecular formula:c17h22clno3
molecular weight:323.8145
appearance:white powder
items |
specification |
results |
|
bp2010 /ep6 |
appearance |
crystalline powder |
conforms |
melting point |
about 205°c |
206.2°c~206.5°c |
|
identification |
meet the requirements |
conforms |
|
appearance of solution |
clear, not more intense than y7 |
conforms |
|
ph |
2.4~3.0 |
2.40 |
|
loss on drying |
≤0.5% |
0.01% |
|
sulphated ash |
≤0.1% |
0.005% |
|
heavy metals |
≤20 ppm |
12 ppm |
|
related substances |
≤0.25% |
conforms |
|
assay |
99.0%~101.0% |
99.5% |
|
usp32 |
identification |
meet the requirements |
conforms |
loss on drying |
≤0.5% |
0.02% |
|
residue on ignition |
≤0.1% |
0.005% |
|
heavy metals |
≤0.003% |
0.002% |
|
residue solvent - ethanol |
≤0.5% |
0.01% |
|
chloride |
16.9%~17.6% |
17.2% |
|
assay |
98.0%~102.0% |
99.5% |
|
conclusion: the product complies with bp2010/usp32 standard |