CozyHi™ Prestained Protein Ladder


  • Approximate protein molecular weight determination on denaturing gels

  • Monitoring of electrophoresis process and Western transfer efficiency


  • Room-temperature-stable ladders, always ready to use

  • Sharp bands, bright colors

Catalog. # Product Name Size Price Qty
PRL0202 CozyHi™ Prestained Protein Ladder 200 appl. of 5 µl

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highQu ready to use Prestained Protein Ladders are mixtures of highly recombinant proteins with coupled chromofores providing sharp protein bands and bright colors on denaturing polyacrylamide gels. The high ladder purity allows for exceptional stability and room shorm term temperature storage. Ladders are ready to be directly loaded on gels without any preparation or heating.  They provide sharp bands for approximate protein sizing and allow for monitoring of electrophoresis process and Western transfer efficiency.



Print version of the protocol: Product Insert CozyHi™ Prestained Protein Ladder
The Ladder is ready for loading.
  • Mix the ladder well before the use.
  • Take 3-5 µl of the ladder for a small size gel slot for electrophoresis.
  • Use a bit less of the ladder (2-3 µl) for Western blots.
  • Due to high amount of the protein in each ladder band, the ladder might show positive results in immunodetection of blots. However this is typically a result of unspecific hybridization.


PRL0202 200 appl. 2 x 0.5 ml - CozyHi™ Prestained Protein Ladder Ready to load ladders contain highly purified prestained proteins, supplied denatured in 20 mM Tris-Phosphate (pH 7.5 at 25°C), 2% SDS, 0.2 mM DTT, 3.6 M Urea, 15% (v/v) glycerol). 
Storage and stability:     
  • Room temp. 2 weeks
  • +4°C 3 months
  • -20°C 12 months
The storage recommendations are just guidelines, the expiry date shall be followed.