Thermo Scientific™

PageRuler™ Prestained NIR Protein Ladder

Catalog number: 26635
Thermo Scientific™

PageRuler™ Prestained NIR Protein Ladder

Catalog number: 26635
Catalog Number
Unit Size
2 x 250 µL
Price (USD)
Price: 267.00
Your Price:
Catalog NumberUnit SizePrice (USD)Quantity
266352 x 250 µL
Price: 267.00
Your Price:
Product Overview
Citations & References
Additional Information
Thermo Scientific PageRuler Prestained NIR Protein Ladder is a mixture of 10 proteins (11 to 250 kDa) that are blue-stained and fluor-labeled for near-IR fluorescent visualization and protein sizing following electrophoresis. The protein ladder is supplied in a ready-to-use format for direct loading onto gels; no need to heat, reduce, or add sample buffer prior to use.

Compare and view all other protein standards and ladders ›

Product features
• Fluorescent—detect using 670 nm red laser or 700 nm channels with fluorescence imagers
• Reference band—55 kDa band has greater intensity for easy orientation

• Monitoring protein migration during SDS-polyacrylamide gel electrophoresis
• Monitoring protein transfer onto membranes after western blotting
• Sizing of proteins on NIR fluorescent SDS-polyacrylamide gels and western blots

For Research Use Only. Not for use in diagnostic procedures.


Detection Method
Colorimetric, NIR Fluorescence (700 nm)
Number of Markers
Product Type Specs
Protein Ladder
Ready to Load
Size Range
11 to 250 kDa
Stain Type
1 color: Blue
Gel Compatibility
Bolt™ Bis-Tris Plus Gels, Novex™ Tricine Gels, Novex™ Tris-Glycine Gels, NuPAGE™ Bis-Tris Gels, NuPAGE™ Tris-Acetate Gels, SDS-PAGE Gels
Molecular Weight
250, 130, 95, 70, 55, 43, 34, 26, 15, 11 kDa
Product Line
2 x 250 mL
Shipping Condition
Approved for shipment on Wet or Dry Ice
System Type
Western Blotting, SDS-PAGE

Contents & Storage

Contents: two vials of 250 µL each

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

Storage: Upon receipt store at -20°C