Product Data Sheet

Leptomycin B

Catalog No. A20985

main product photo
Leptomycin B (CI 940; LMB) is a potent inhibitor of the nuclear export of proteins. Leptomycin B inactivates CRM1/exportin 1 by covalent modification at a cysteine residue. Leptomycin B is a potent antifungal antibiotic blocking the eukaryotic cell cycle.
Chemical Information
Catalog Num A20985
M. Wt 540.73
Formula C33H48O6
Purity >98%
Storage at -20 °C 3 years (powder form); at -20 °C 6 months (Solution base)
CAS No. 87081-35-4
Synonyms CI 940, CI940, CI-940; LMB
SMILES O=C(O)/C=C(C)/C[C@H](C)[C@@H](O)[C@H](C)C([C@H](C)/C=C(C)/C=C/C[C@@H](C)/C=C(CC)\C=C\[C@H]1[C@@H](C)C=CC(O1)=O)=O
Storage

Store lyophilized at -20ºC, keep desiccated.
In lyophilized form, the chemical is stable for 36 months.
In solution, store at -20ºC and use within 3 months to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles.

Biological Activity
Discription Leptomycin B (CI 940; LMB) is a potent inhibitor of the nuclear export of proteins. Leptomycin B inactivates CRM1/exportin 1 by covalent modification at a cysteine residue. Leptomycin B is a potent antifungal antibiotic blocking the eukaryotic cell cycle.
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SHIPPING AND STORAGE
Adooq products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Adooq Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Adooq products are stable under the recommended conditions.