DNA ladders

Invitrogen DNA Ladders are available for a wide variety of size ranges, applications, and formats. To create our DNA Ladders, each fragment is purified individually using proprietary chromatography-based technology, resulting in DNA Ladders of superior quality which exceeds industry standards. DNA Ladders are stable during prolonged incubation at room temperature and multiple freeze-thaw cycles.

New and improved Invitrogen DNA Ladders─released September, 2017

Upgrades include:

  • Chromatography-purified DNA fragments for brighter, sharper bands
  • Optimized size ranges for easier analysis
  • Improved loading dyes for clear tracking and analysis

Learn more about Invitrogen DNA Ladder upgrades

The key to accurate band analysis is to use the correct DNA ladder for your particular application. Use the Invitrogen DNA Ladder selection table below to help you choose the DNA ladder you need.

  • Invitrogen E-Gel DNA Ladders are formulated specifically for maximum performance on Invitrogen E-Gel precast agarose gels and are provided in ready-to-load formats.
  • Invitrogen TrackIt DNALadders are designed for use with agarose gels and are provided in convenient, ready-to-load formats.
  • Invitrogen Mass DNA Ladders are designed for accurate quantification and sizing of DNA fragments in agarose gels. 
  • Invitrogen DNA Ladders are provided with the loading buffer in a separate tube.

Table 1. Invitrogen DNA Ladder selection guide

ProductRange, base pair (bp)Chromatography-purified fragmentsReady to loadLoading dyes or buffer supplied
Invitrogen E-Gel DNA Ladders10 to 15,000YesYesXylene Cyanol, Tartrazine (1X E-Gel Sample Loading Dye) or Xylene Cyanol, Orange G (1X E-Gel Sample Loading Dye)
Invitrogen TrackIt DNA Ladders1,000 to 10,000 (High mass)

100 to 2,000 (Low mass)
YesYesTrackIt Cyan/Yellow Loading dye, TrackItCyan/Orange Loading Dye
Invitrogen Mass DNA Ladders10 to 15,000YesNoProvided with 10X BlueJuice Gel Loading Buffer
Invitrogen DNA Ladders10 to 15,000YesNoProvided with 10X BlueJuice Gel Loading Buffer

Ambient shipping helps to reduce environmental footprint

To reduce the annual carbon footprint associated with packaging and shipping our DNA Ladders, we use ambient (non-insulated) shipping with many of our DNA Ladders. Products approved for shipping at ambient temperatures have undergone rigorous testing to ensure ambient shipping has no impact on their quality and stability.

 Read the white paper

Benefits of chromatography-based purification of DNA Ladder fragments

The chromatography-based purification method results in exceptional purity and quality of DNA fragments used to make Invitrogen DNA Ladders. This method also enables precise in-gel quantification because the concentration of each DNA fragment in the DNA Ladders is determined spectrophotometrically. In addition, the chromatography-based purification method does not require the use of organic solvents, making it a more environmentally friendly process.

Ordering information


Nucleic acid education

Learn about gel electrophoresis basics, workflows, considerations, applications, and troubleshooting in separation and analysis of nucleic acids.


Nucleic Acid Purification and Analysis Support Center

Find tips, troubleshooting help, and resources for your nucleic acid purification and analysis applications.

Product support documentation

Search for manuals, protocols, Material Safety Data Sheets, product literature and certificates by catalog number or product name.

Contact us

Email or call our Technical Application Scientists for additional questions regarding DNA ladders

For Research Use Only. Not for use in diagnostic procedures.

For Research Use Only. Not for use in diagnostic procedures.