Thermo Scientific™

Spectra™ Multicolor High Range Protein Ladder

Catalog number: 26625
Thermo Scientific™

Spectra™ Multicolor High Range Protein Ladder

Catalog number: 26625
Catalog Number
Unit Size
2 x 250 µL
Price (USD)
Price: 195.00
Your Price:
Catalog NumberUnit SizePrice (USD)Quantity
266252 x 250 µL
Price: 195.00
Your Price:
Product Overview
Citations & References
Additional Information
Thermo Scientific Spectra Multicolor High Range Protein Ladder is a mixture of eight blue-, green-, and orange-stained proteins (40 to 300 kDa) for use as size standards for high-MW proteins in gel electrophoresis and western blotting. 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 ›

• Monitoring of protein migration during SDS-PAGE
• Verifying western transfer efficiency
• Approximate sizing of proteins on SDS-polyacrylamide gels and western blots
• Locating a protein of interest for excision from an unstained preparative gel

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


Detection Method
Colorimetric, NIR Fluorescence (700 nm), RGB Fluorescence (555 nm)
Number of Markers
Product Type Specs
Protein Ladder
Ready to Load
Recommended Applications
Tris-acetate gels
Size Range
40 to 300 kDa
Stain Type
3 colors: Blue, Orange, Green
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
300, 250, 180, 130, 100, 70, 50, 40 kDa
Product Line
2 x 250 µL
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