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Tetramycin B (4-Hydroxytetramycin A), a polyene macrolide antibiotic and potent antifungal agent, is derived from Streptomyces hygrospinosus var. Beijingensis. Tetramycin B exhibits greater antifungal activity compared to Tetramycin A, primarily due to the critical role of its C-4 hydroxyl in enhancing its biological function.Tetramycin B is effective against various plant pathogenic fungi and has potential agricultural applications.

| Pack Size | Price | Availability | Quantity |
|---|---|---|---|
| 1 mg | $265 | In Stock | |
| 5 mg | $648 | In Stock | |
| 10 mg | $918 | In Stock | |
| 25 mg | $1,360 | In Stock | |
| 50 mg | $1,830 | In Stock |
| Description | Tetramycin B (4-Hydroxytetramycin A), a polyene macrolide antibiotic and potent antifungal agent, is derived from Streptomyces hygrospinosus var. Beijingensis. Tetramycin B exhibits greater antifungal activity compared to Tetramycin A, primarily due to the critical role of its C-4 hydroxyl in enhancing its biological function.Tetramycin B is effective against various plant pathogenic fungi and has potential agricultural applications. |
| Synonyms | 4-Hydroxytetramycin A |
| Molecular Weight | 711.79 |
| Formula | C35H53NO14 |
| Cas No. | 82517-08-6 |
| Smiles | O[C@@H]1[C@H](O[C@@H](C=C/C=C\C=C\C=C\[C@@H]([C@@H](C)O2)CC)C[C@@]3([H])[C@H](C(O)=O)[C@@H](O)C[C@@](O3)(O)C[C@@H](O)C[C@@H](O)[C@H](O)/C=C/C2=O)O[C@H](C)[C@@H](O)[C@@H]1N |
| Color | Brown |
| Appearance | Solid |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice. |

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