- Contact Person : Mr. Yu Tiejun
- Company Name : Shaanxi Dasheng Pharmaceutical Tech Co., Ltd.
- Tel : 86-29-88193551
- Fax : 86-29-88193353
- Address : Shaanxi,Xi'an,9F of Jiezuo Square, No.2 South Fenghui Rd., Hi-tech Industrial Developing Zone, Xi'an, China.
- Country/Region : China
- Zip : 710075
97240-79-4
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Topiramate is a new drug of anticonvulsants. We are a manufacturer and exporter of it as the stnadard of USP32 with high quality and large quantity.
Topiramate
1. CAS RN: 97240-79-4
2. Structural Formula:
3. Molecular formula & Molecular weight: C12H21NO8S 339.37
4. Appearance: It’s a white to off-white powder. Freely soluble in dichloromethane
5. Quality Standard: USP32, purity ≥ 99.0%
Identification | Infrared Absorption |
The retention time of the major peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the Standard preparation , as obtained in the Assay | |
Specific rotation | Between -28.6° and -35.0°,measured at 20° |
Water | Not more than 0.5% |
Residue on Ignition | Not more than 0.1% |
Heavy metals | Not more than 10ppm |
Related compounds by HPLC (Test 1) | 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% |
Limit of sulfamate and sulfate | Sulfamate ion not more than 0.10%; Sulfate ion not more than 0.10%. |
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. |
6. Usage: It’s a new drug of anticonvulsants.
7. Storage: It stored in sealed containers, cool and dry place, and away from light.
8. Packing: Paper bucket, 25kg/package.
9. HS CODE: 2932 9990.90
97240-79-4
