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25 Kilogram |
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affordable price PYRIDOXINE HCL high purity 58-56-0 58-56-0 supplier
Appearance: White crystalline or crystalline powder.
Solubility: Vitamin B6 is soluble in water and stable to heat and acid, slightly soluble in alcohol, insoluble in chloroform or ether.
CAS: 65-23-6 (Pyridoxine) 58-56-0 (Pyridoxine Hcl)
M.F.: C8H11NO3 / C8H11NO3.HCL
M.W.: 169.18 / 205.64
EINECS No:200-603-0 / 200-386-2
Specification
Items |
Specifications |
Results |
Appearance |
White Fine Powder/Crystal |
Complies |
Identification |
Infared Absorption |
Complies |
The retention time of the major peak in the chromatogram of the Assay prepration corresponds to that in the chromatogram of the standard preparation, as obtained in the assay |
complies |
|
Specific rotation |
Between -28.6°and -35.0°, measured at 20° |
-32.8° |
Water |
not more than 0.5% |
0.12% |
residue on ignition |
not more than 0.2% |
0.11% |
Heavy metals |
not more than 0.001% |
complies |
related compounds by HPLC(Test1) |
Fructose not more than 0.3% Compound A not more than 0.3% Other individual impurity not more than 0.1% Total impurities not more than 0.5% |
Fructose: 0.03% Compound A: 0.04% Total impurities: 0.07% |
Particle size |
90% less than 350 microns |
complies |
Limit of sulfamate and sulfate |
Sulfamate ion not more than 0.10% Sulfate ion not more than 0.10% |
complies |
Residual Solvent |
Methylene Chloride not more than 250μg/g |
not detected |
Acetone not mor than 2500μg/g |
||
Isopropanol not more than 5000μg/g |
||
Ethanenitrile not more than 400μg/g |
||
n-hexane not more than 290μg/g |
||
Ethyl Acetate not more than 2500μg/g |
||
Pyridine not more than 100μg/g |
||
Assay |
Topiramate contains not less than 98.0% and not more than the equivalent of 102.0% of C12H21NO8S, calculated with reference to the Anhydrous Basis |
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