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78628-80-5 Terbinafine HCL Terbinafine Hydrochloride
Product Name: Terbinafine Hydrochloride
CAS No.: 78628-80-5
EINECS No.: 245-385-8
Molecular Formula: C21H26ClN
Molecular Weight: 327.89
Appearance: White or off-white crystalline powder
Items |
Specifications |
Results |
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Appearance |
White Crystalline Powder |
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Identification |
Infared Absorption |
Complies |
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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 |
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Specific rotation |
Between -28.6°and -35.0°, measured at 20° |
-32.8° |
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Water |
not more than 0.5% |
0.12% |
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residue on ignition |
not more than 0.2% |
0.11% |
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Heavy metals |
not more than 0.001% |
complies |
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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% |
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Particle size |
90% less than 350 microns |
complies |
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Limit of sulfamate and sulfate |
Sulfamate ion not more than 0.10% Sulfate ion not more than 0.10% |
complies |
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Residual Solvent |
Methylene Chloride not more than 250μg/g |
not detected |
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Acetone not mor than 2500μg/g |
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Isopropanol not more than 5000μg/g |
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Ethanenitrile not more than 400μg/g |
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n-hexane not more than 290μg/g |
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Ethyl Acetate not more than 2500μg/g |
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Pyridine not more than 100μg/g |
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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 |
99.80% |
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Conclustion |
The material complies with respect to USP32 |
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