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| Product introduction |
| Chinese name: Ergosterol |
| English name: Ergosterol |
| Chinese alias: Provitamin D2 |
| CAS RN: 57-87-4 |
| EINECS No.: 200-352-7 |
| Molecular formula: C28H44O |
| Molecular weight：396.65 |
| Use: it is the intermediate for producing hormone drugs, and is used to produce cortisone. |
Structural formula:
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