Thermo Scientific™ Pierce™ Unstained Protein Molecular Weight Marker

A mixture of seven native proteins (14.4kDa to 116kDa) for use as size standards in protein electrophoresis (SDS-PAGE).

Brand: Thermo Scientific™

Manufacturer Part Number: 26610

UNSPSC: 41105337

Code: PN

Additional Details:
Additional Details: Weight: 1.36080kg

Product Code. 11882114

Quantity Price
1 £ 47.22 / Pack of 2
EU Stock 95
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Description and Specification


Formulation 7 proteins from 14.4 to 116kDa in reducing sample buffer
Sufficient For 200 to 400 mini gel lanes at 5 to 10uL per lane
Description Pierce Unstained Protein Molecular Weight Marker
Stained Unstained
Detection Visible
Quantity 2 x 1mL
Separation Range Mid

The protein MW marker is designed for accurate sizing of proteins in SDS-polyacrylamide gel electrophoresis, as well as on PVDF, nylon and nitrocellulose membranes. The protein standard produces sharp bands on protein mini gels following staining with Thermo Scientific Pierce Gel Stains or other coomassie dye or silver stains.


  • Size range – seven proteins spanning 14.4 to 116kDa

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

  • Sharp bands – equal intensity upon coomassie or silver staining

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


Proteins (0.1 to 0.2mg/mL of each) in 62.5mM Tris-HCl (pH 7.0 at 25°C), 1mM EDTA, 2% SDS, 50mM DTT, 30mM NaCl, 1mM NaN3, 0.01% bromophenol blue and 50% glycerol; Component proteins: beta-galactosidase (116kDa), bovine serum albumin (66.2kDa), ovalbumin (45.0kDa), lactate dehydrogenase (35.0kDa), REase Bsp98I (25.0kDa), beta-lactoglobulin (18.4kDa), lysozyme (14.4kDa)

Recommended for:

Accurate protein sizing on SDS-polyacrylamide gels and Western blots