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Thermo Scientific™ Blocker™ Casein Blocking Buffers

Block membranes, plates and other samples with these ready-to-use PBS or TBS solutions of purified casein for Western blot, ELISA and other detection methods.

Brand:  Thermo Scientific™ 37532

Code : PN

Additional Details : Weight : 1.00000kg Transport : UN number : 2735 Chem class : 1b Pack group : III

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Product Code. 10443644

  • £117.00 / 1 L

EU Stock 12
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These blocking buffers contains casein protein that is purified from milk by the Hammarsten method. The phosphate- and Tris-buffered saline formulations are used for blocking excess binding sites on membranes and microplates in antibody-based detection methods. Blocker Casein Buffers are 1% (w/v) casein, which corresponds to the optimal concentration for most applications.


  • Purified casein – single-protein blocking buffer provides fewer chances of cross-reaction with assay components than serum or milk solutions

  • Easy to use – 1% casein solutions are ready to use; can be diluted further as needed

  • Flexible – available in PBS and TBS formulations to suit a variety of applications

  • Safe – stable, thimerosal-free formulations



1% (w/v) casein in Tris-buffered saline, pH 7.4, with Kathon preservative
30 blots or microplates at 30mL each
Blocker Casein in TBS

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