NINGBO HI-TECH ZONE YEFENG NEW MATERIALS TECHNOLOGY CO.,LTD.
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CAS No. 378-44-9
Other Names Betameth
MF C22H29FO5
EINECS No. 206-825-4
Place of Origin Zhejiang, China (Mainland)
Type Anti-Allergic Agents, Immune Function Agents
Grade Standard Medicine Grade
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ITEM | SPECIFICATION | RESULTS |
Discription | A white to almost white, odorless, crystalline powder. | White, crystalline powder |
Identification | IR, UV, HPLC | Positive |
Specific rotation: | +118 ~ +126 . | 118.3 |
Loss on drying | ≤0.5% | 0.16% |
Residue on ignition | ≤0.1% | 0.06% |
Relative substance | total not more than 1.0% | 0.80% |
Assay | 97%~103% | 98.8% |