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Thermo Scientific™

MassRuler Express LR Forward DNA Ladder, ready-to-use This product, and/or its packaging, incorporates one or more environmental/green features. Click on this icon to learn more.

Catalog number:  SM1263

Related applications:

Nucleic Acid Gel Electrophoresis & Blotting

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Thermo Scientific MassRuler Express LR Forward and Reverse DNA ladders are specially designed for fast and reliable DNA quantification in short separation distances under various electrophoresis conditions. In the forward versions, the mass of each DNA fragment is directly proportional to the fragment size, whereas in the reverse versions, the mass is inversely proportional to fragment's size.

The intensity of the fragment in each ladder is calibrated against a standard that guarantees the precise quantity of each band. The ladders are mixtures of chromatography-purified, individual DNA fragments.


• Accurate DNA sizing and quantification—DNA ladder fragments are quantified spectrophotometrically
• Fast and reliable DNA quantification—short separation distances under various electrophoresis conditions
• Sharp bands
• Easy-to-remember fragment sizes and quantities
For Research Use Only. Not for use in diagnostic procedures.


Gel Compatibility: Agarose Gels
Green Features: Sustainable packaging
Product Line: MassRuler
Ready to Load: Yes