Beijing Mesochem Technology Co., Ltd is located in national economic and technological development of Yizhuang, which is a gathering place of world's top 500 enterprises. Devoting to pharmaceutical chemicals, find chemicals, and fundamental chemical material, Mesochem owns independent right of import and export.Based on abundant resources from Beijing various colleges and universities, Mesochem focused on incessant innovation along with research and development of new products.
Certificate of Analysis
Mesalazine CAS 89-57-6
Mesalazine CAS 89-57-6
| Items | Standard | Results |
| APPEARANCE | Off white to white powder | White powder |
| IDENTIFICATION | A: IR B: Retention time | Complies Complies |
| WATER | ≤0.5% | 0.06% |
| HEAVY METALS | ≤0.002% | Complies |
| ISOMERS | SFBD1≤0.15% | Undetected |
| SFBD2≤0.15% | Undetected | |
| SFBE≤0.15% | Undetected | |
| RELATED SUBSTANCES | SFBA-1≤0.15% | 0.04% |
| SFBMA≤0.15% | Undetected | |
| CHLORO-SFB≤0.15% | 0.05% | |
| DiSFBMA-SFB≤0.15% | 0.02% | |
| Methyl-SFB≤0.15% | Undetected | |
| Pentafluoro-phenol≤0.15% | Undetected | |
| Amino-SFB≤0.15% | Undetected | |
| Any unknown impurity≤0.1% | 0.04% | |
| Total impurity≤1.0% | 0.21% | |
| RESIDUE SOLBENTS | Methanol≤3000ppm | Undetected |
| Isopropyl alcohol≤5000ppm | 19ppm | |
| Dichloromethane≤600ppm | Undetected | |
| Tetrahydrofuran≤720ppm | Undetected | |
| Acetic acid≤5000ppm | Undetected | |
| Toluene≤890ppm | Undetected | |
| Chlorobenzene≤360ppm | Undetected | |
| Methyl tert-butyl ether≤5000ppm | 103ppm | |
| ASSAY | ≥99.0% | 99.8% |
| RESULT: It complies to prescribed enterprise standard | ||
