Photo of various DNA ladders and markers

We supply a wide range of Invitrogen™ DNA ladders and markers for accurate size and mass estimation (quantitation) of DNA fragments. DNA ladders and markers are available for sizing double-stranded, single-stranded, or supercoiled DNA.

A variety of these DNA ladders and markers are also available in the ready-to-load TrackIt™ format. There is no need to heat, mix, or dilute these markers prior to loading them on your gel. TrackIt™ markers contain two tracking dyes that indicate when maximum resolution of the DNA fragments has been achieved.

For estimating molecular weight & DNA mass

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Most convenient solution for estimating molecular weight & DNA mass

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Best solution for E-Gel® Precast Agarose Systems

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Suitable for sizing double-stranded DNA from 100 to 1,500 bp.

A powerful tool for estimating the molecular weight of linear double-stranded DNA fragments.

DNA ladders and markers selection guide

We offer unique DNA ladders and markers for a wide variety of size ranges, applications, and formats. The key to accurate band analysis is to use the correct marker or standard for your particular application. Use the selection chart to help you choose the one you need.

DNA ladders and markers selection guide

Some DNA ladders now shipping at ambient temperature

To reduce the environmental impact associated with polystyrene coolers, added refrigerants, and transport emissions, we switched some of our gel ice– and dry ice–shipped DNA ladders to ambient temperature shipping—with no impact on the quality and stability of these products.

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