Thermo Scientific™

PageRuler™ Unstained Low Range Protein Ladder

Catalog number: 26632
Thermo Scientific™

PageRuler™ Unstained Low Range Protein Ladder

Catalog number: 26632
Catalog Number
Unit Size
2 x 250 µL
Price (USD)
Price: 125.00
Your Price:
Catalog NumberUnit SizePrice (USD)Quantity
266322 x 250 µL
Price: 125.00
Your Price:
Product Overview
Citations & References
Additional Information
Thermo Scientific PageRuler Unstained Low Range Protein Ladder is a mixture of eight purified proteins and peptides (3.4 to 100 kDa) for use as size standards in peptide and small-protein gel 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
• Reference bands—25 kDa band is stronger than the others for easy orientation
• Tagged—the ladder proteins (except for the 5 and 3.4 kDa peptides) contains an integral Strep-tag™ II sequence and can be detected on western blots using Strep-Tactin™ conjugates

• Accurate protein sizing on SDS-polyacrylamide gels and western blots

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


Number of Markers
Product Type Specs
Protein Ladder
Ready to Load
Recommended Applications
Tricine gels
Size Range
3.4 to 100 kDa
Stain Type
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
100, 30, 25, 20, 15, 10, 5, 3.4 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, 100 mM DTT, 1 mM NaN3, 0.01% bromophenol blue and 33% glycerol

Storage: Upon receipt store at -20°C