These products are now shipping under ambient conditions. Learn more.

MassRuler Express Forward DNA Ladder Mix, 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: SM1283

Thermo Scientific™  Related applications: Nucleic Acid Gel Electrophoresis & Blotting

Error loading your content!

  Catalog number
Select a plan
Unit size
Price ({{currency}}) Your price ({{currency}}) Availability Qty
{{product.sku}} {{product.sku}}
also known as {{product.formattedSku}} 
{{subscriptionDetails.selectedRatePlan.billingPeriod}} {{subscriptionDetails.selectedRatePlan.billingPeriod}} {{product.availability.message}}
Pro add-ons

Your on-site stock

›› {{supplyCenter.scName}}({{scProduct.stockOnHand}} In stock)
›› {{supplyCenter.scName}}(Out of stock)
›› {{supplyCenter.scName}}
This item is not currently available on-site. Depending on your Supply Center settings you may be able to add the item to cart above else use the Order Non-Stocked Items' tab on the Supply Center home page.
Back to top


Thermo Scientific MassRuler Express Forward and Reverse DNA Ladder mixes are specially designed for fast and reliable DNA quantification in short separation distances under various electrophoresis conditions (see Table 1). 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 &mdash short separation distances under various electrophoresis conditions
• Sharp bands
• Easy-to-remember fragment sizes and quantities
• Ready-to-use—premixed with 6X MassRuler DNA Loading Dye for direct loading and room temperature storage
• Supplied with loading dye for sample DNA
For Research Use Only. Not for use in diagnostic procedures.


Gel Compatibility: Agarose Gels
Ready to Load: Yes
Product Size: 2 x 500 µL
Green Features: Less waste, Sustainable packaging


Manuals & protocols

Recommended products