Tween 20



Product Description

Tween®-20 (polysorbate 20) is a polysorbate surfactant commonly used as a blocking and washing agent in Western blotting and other immunostaining assays. Tween®-20 is typically included in blocking buffers and washing buffers at a concentration of 0.1% to reduce non-specific antibody binding. TWEEN is a registered trademark of Uniqema Americas LLC.


MSDS (PDF): MSDS 22002

50 mL

Shipment Method: Shipping and handling methods will be assessed and calculated at time of shipment based upon item(s) storage temperature conditions.

Expedited shipment may be requested at time of checkout.

Please note that products will be shipped at ambient temperature. This will not affect performance if the products are kept at the indicated temperature for long term storage. Please refer to the package insert for correct storage conditions.

More information about product handling and shelf life