Thermo Scientific PageRuler™ Prestained NIR Protein Ladder

A mixture of 10 proteins (11 to 250KDa) that are blue-stained and fluor-labeled for near-IR fluorescent visualization and protein sizing following electrophoresis.

Brand: Thermo Scientific

Manufacturer Part Number: 26636

UNSPSC: 12161500

Code: PN

Additional Details:
Additional Details: Weight: 1.00000kg

Product Code. 12381893

Quantity Price
1 £ 15.15 / 25µL
EU Stock 1
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  • Description and Specification
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Description and Specification


Quantity 25μL
Separation Range Broad
Stained Prestained
Detection Fluorescent, Visible
Formulation 10 proteins from 11 to 250kDa in reducing sample buffer
Sufficient For 5 to 25 mini gel lanes at 1 to 5uL per lane for infrared imaging detection
Description PageRuler Prestained NIR Protein Ladder

The protein MW markers in this ladder resolve into sharp bands when analyzed by SDS-PAGE and are labeled with a fluorescent dye for visualization with instruments equipped for detection of near-infrared (NIR) fluorescence. The bands are also directly visible because the proteins are prestained blue. The 55kDa band is of greater intensity and serves as a reference band. The protein ladder is conveniently packaged and ready to use: no heating, dilution or addition of a reducing agent is required before use.


  • Size range 10 proteins spanning 11 to 250kDa

  • Fluorescent detect using 670nm red laser or 700nm channels with fluorescence imagers

  • Ready-to-use supplied in a loading buffer for direct loading on gels

  • Sharp bands excellent sizing for near-infrared visualization of protein gels and blots

  • Reference band 55kDa band has greater intensity for easy orientation

  • Quality tested each lot evaluated by SDS-PAGE and Western blotting


Proteins in 62.5mM Tris-H3PO4 (pH 7.5 at 25°C), 1mM EDTA, 2% SDS, 10mM DTT, 1mM NaN3 and 33% glycerol


Fluorescent imager capable of near-infrared fluorescence detection, such as certain Typhoon™ Imagers and the LI-COR Odyssey™ Infrared Imaging System

Recommended for:

Protein sizing on SDS-polyacrylamide gels and Western blots for visualization with near-infrared (NIR) fluorescence imagers

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