DNA Ladder Markers

DNA and RNA size markers contain a mixture of DNA (or RNA) fragments of known length, making them suitable for estimating the fragment length of concurrently run samples. They stain well with ethidium bromide and other common nucleic acid stains for visualization after gel electrophoresis. Sigma-Aldrich offers a variety of markers for nucleic acid size determination of sample separated by various gel electrophoresis methods.

For easier selection, view the Selection Guide.

Product #

Description

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D5042 123 bp DNA Ladder for DNA electrophoresis
S7025 50 bp DNA Step Ladder for DNA electrophoresis
D3812 DirectLoad 50 bp DNA Step Ladder ready-to-use marker for DNA electrophoresis
D3937 DirectLoad 1 kb DNA Ladder ready-to-use marker for DNA electrophoresis
D3687 DirectLoad PCR 100 bp Low Ladder ready-to-use marker for DNA electrophoresis
D7058 DirectLoad Wide Range DNA Marker ready-to-use marker for DNA electrophoresis
11218590910 DNA Molecular Weight Marker II, DIG-labeled Green Alternative
11218603910 DNA Molecular Weight Marker III, DIG-labeled Green Alternative
11218611910 DNA Molecular Weight Marker VI, DIG-labeled Green Alternative
11669940910 DNA Molecular Weight Marker VII, DIG-labeled Green Alternative
11449451910 DNA Molecular Weight Marker VIII, DIG-labeled Green Alternative
D0428 1 kb DNA Ladder for DNA electrophoresis
P1473 PCR 100 bp Low Ladder for electrophoresis of PCR fragments
P9577 PCR 50 - 2,000 bp Marker for electrophoresis of PCR fragments
P1598 PCR 20 bp Low Ladder for electrophoresis of PCR fragments
D7808 PCR Low Ladder Set marker set for electrophoresis of PCR fragments