coa of our butenafine hcl / butenafine hydrochloride powder
items |
standard |
test results |
description |
white crystalline powder it is very soluble in formic acid,freely soluble in methanol,ethanol(99.5), slightly soluble in water. the ph of water solution obtained by dissolving of 0.2 g of butenafine hydrochloride in 100ml of water by warming,and cooling,is between 3.0 and 4.0. |
white crystalline powder
conforms |
melting point |
about 214℃(with decomposition) |
216.5℃ |
ph |
3.0~4.0 |
3.1 |
identification |
1.both spectra exhibit similar intensities of absorption at the same wavelengths. |
conforms |
2.both spectra exhibit similar intensities of absorption at the same wave numbers. |
conforms |
|
3.for chloride |
conforms |
|
heavy metals |
≤10ppm |
conforms |
related substances:
|
relative retention time 0.16 impurity<0.03% |
n.d. |
any other impurity≤0.1% |
0.03% |
|
total impurity≤1.0% |
0.33% |
|
loss on drying |
not more than 0.1% |
0.04% |
residue on ignition |
not more than 0.1% |
0.06% |
assay |
not less than 99.0% ~101.0% |
99.6% |