Inner Mongolia Yong Ming Technology Co., Ltd(expird)
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supplier - 8th
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Business Type:Trading Company
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Country: 
China (Mainland)
Business Type:Trading Company
CAS NO.130693-82-2
A(1-2)Kilogram
| Items | Specification | Results |
| Description | White or almost white crystalline powder | Complies |
| Identification | a) IR spectrum | Complies |
| b) By HPLC | ||
| c) Chlorides | ||
| Water | Not more than 0.5% (Using 0.4g) | 0.18% |
| Residue on ignition | Not more than 0.1% | 0.01% |
| Heavy metals | Not more than 0.001% | Complies |
| Limit of Dorzolamide | Not more than 0.5% | 0.10% |
| Hydrochloride related compound "A" | ||
| Chromatographic purity | ||
| Individual impurity: | Not more than 0.1% | 0.10% |
| Total imurities: | Not more than 0.5% | 0.20% |
| Organic volatile | ||
| impurities | ||
| Acetone : | Not more than 5000ppm | Complies |
| Acetonitrile : | Not more than 410ppm | Complies |
| Ethyl acetate : | Not more than 5000ppm | Complies |
| Hexane : | Not more than 290ppm | Complies |
| Methanol : | Not more than 3000ppm | Complies |
| Tetrahydrofuran : | Not more than 720ppm | Complies |
| Toluene : | Not more than 890ppm | Complies |
| Isopropyl alcohol: | Not more than 5000ppm | Complies |
| Chloroform: | Not more than 60ppm | Complies |
| 1,4 - dioxane: | Not more than 380ppm | Complies |
| Trichloroethene: | Not more than 80ppm | Complies |
| Dichloromethane: | Not more than 600ppm | Complies |
| Assay (On anhydrous basis) | 99.0% ~ 101.0% (C10H16N2O4S3.HCl) | 99.40% |
| Conclusion | The results conform to USP31 | |
Hypertansion
