China Topiramate, Toiramate, USP Good Quality, Find details about China Toiramate, Tracrium from Topiramate, Toiramate, USP Good Quality
Characteristics | White to off-white powder. Freely soluble in dichloromethane |
Identification | Infrared Absorption The retention time of the major peak of the sample solution corresponds to that of the standard solution, as obtained in the assay |
Residue on Ignition | NMT 0.2% |
Heavy metals | NMT10ppm |
Related compounds by HPLC(procedure 2) | Fructose: NMT0.3% Compound A: NMT0.3% Individual unknown: NMT0.1% Total impurities: NMT0.5% |
Specific rotation | Between -28.6° and -35.0°(20ºC) |
Water | NMT0.50% |
Limit of sulfamate and sulfate | Sulfamate: NMT0.1% Sulfate ion: NMT0.1% |
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 |