New England Biolabs is working diligently to ensure we keep our employees and their families safe, while maintaining our business continuity. Despite a "Stay At Home" advisory being put in place in Massachusetts, USA, we are deemed an essential business, and our manufacturing and distribution teams continue to be fully operational. We are continuing to work with our suppliers and distribution partners to ensure uninterrupted access to our products and technical support.

Unstained Protein Standard, Broad Range (10-200 kDa)

This product has been discontinued and replaced with NEB #P7717. There may be some remaining stock in certain geographies; please contact your local subsidiary office to inquire.
  • Catalog # P7704 was discontinued on May 01, 2019 ;

The Unstained Protein Standard, Broad Range is a mixture of 12 recombinant, highly purified proteins, which resolve into clearly identifiable sharp bands from 10-200 kDa when analyzed by SDS-PAGE and stained with a commercially available, ready-to-use protein stain. The 25 and 85 kDa bands have increased intensity and serve as reference indicators.

  • Allows accurate molecular weight determination when performing SDS-PAGE analysis.
  • Direct loading, additional loading buffer and heat incubation not required
  • Recombinant proteins with no detectable protease contaminating activities
  • Optimal stability for up to 24 months


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