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Activators & Inhibitors
Chemical Modulators

Aphidicolin #32774

Citations (0)
Western blot analysis of extracts from HT-29 cells, untreated (-) or treated with Aphidicolin (10 μg/ml, 24 hr; +), using Thymidine Kinase 1 (E2H7Z) Rabbit mAb #28755 (upper) or β-Actin (D6A8) Rabbit mAb #8457 (lower).
Chemical structure of Aphidicolin.

Product Usage Information

Aphidicolin is supplied as a lyophilized powder. For a 5 mM stock, reconstitute 1 mg of powder in 590 μl of DMSO. Working concentrations and length of treatment can vary depending on the desired effect.


Store lyophilized at -20ºC, desiccated. In lyophilized form, the chemical is stable for 24 months. Once in solution, store at -20ºC and use within 1 month to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles.

Product Description

Molecular Weight 338.5 g/mol
Purity >98%
Molecular Formula C20H34O4
CAS 38966-21-1
Solubility Soluble in DMSO at 10 mg/ml or ethanol at 1 mg/ml.


Aphidicolin is a tetracyclic diterpenoid first produced by the fungus Cephalosporium aphidicola. This antibiotic is a potent inhibitor of cellular deoxyribonucleic acid (DNA) synthesis by targeting α, ε, and δ DNA polymerases in eukaryotic cells lines with little to no effect on β or γ DNA polymerases (1,2). Studies have shown that Aphidicolin specifically binds to α DNA polymerase, resulting in the formation of a pol α-DNA-aphidicolin ternary complex that blocks DNA replication. The uses for this compound include synchronized cells at the G1/S boundary and increased gene amplification (3-6).

Limited Uses

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Products are labeled with For Research Use Only or a similar labeling statement and have not been approved, cleared, or licensed by the FDA or other regulatory foreign or domestic entity, for any purpose. Customer shall not use any Product for any diagnostic or therapeutic purpose, or otherwise in any manner that conflicts with its labeling statement. Products sold or licensed by CST are provided for Customer as the end-user and solely for research and development uses. Any use of Product for diagnostic, prophylactic or therapeutic purposes, or any purchase of Product for resale (alone or as a component) or other commercial purpose, requires a separate license from CST. Customer shall (a) not sell, license, loan, donate or otherwise transfer or make available any Product to any third party, whether alone or in combination with other materials, or use the Products to manufacture any commercial products, (b) not copy, modify, reverse engineer, decompile, disassemble or otherwise attempt to discover the underlying structure or technology of the Products, or use the Products for the purpose of developing any products or services that would compete with CST products or services, (c) not alter or remove from the Products any trademarks, trade names, logos, patent or copyright notices or markings, (d) use the Products solely in accordance with CST Product Terms of Sale and any applicable documentation, and (e) comply with any license, terms of service or similar agreement with respect to any third party products or services used by Customer in connection with the Products.

For Research Use Only. Not for Use in Diagnostic Procedures.
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To Purchase # 32774
Cat. # Size Qty. Price
1 mg