DirectLoad Wide Range DNA Marker

ready-to-use marker for DNA electrophoresis

Pricing and availability is not currently available.

Quality Level




100 uses


suitable for electrophoresis (DNA)

storage temp.


General description

Sigma′s DirectLoad Wide Range DNA Marker contains 16 fragments from 50 – 10,000 bp, with bands regularly spaced. Ten ul of the ladder can be loaded directly in a single lane on an agarose or polyacrylamide gel.


Suitable for size determination of PCR-generated DNA fragments with either agarose or polyacrylamide gels.

Features and Benefits

  • Ready-to-load
  • Easy-to-use
  • Popular band sizes


Sigma′s DirectLoad Wide Range DNA Marker is provided in a gel-loading solution of 2.5% Ficoll (Type 400), 0.0125% bromophenol blue, and 0.00625% xylene cyanol.

Other Notes

Contains 16 fragments, 50–10,000 bp which produce logically spaced bands on an agarose gel.
For optimal resolution, the recommended agarose gel concentration is 0.75 – 2.0%.

Legal Information

DirectLoad is a trademark of Sigma-Aldrich Co. LLC


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Melanie P Dautle et al.
Journal of clinical microbiology, 40(2), 414-421 (2002-02-05)
In this study, 83 clinical isolates purified from biofilms colonizing 18 silicone gastrostomy devices (12 "buttons" and six tubes converted to skin level devices) were selected for subtype characterization utilizing genetic analysis. The tubes, previously used for feeding, remained in...
We offers a variety of markers that aid size determination of samples separated by agarose and/or polyacrylamide gel electrophoresis. These products include markers for DNA, PCR fragments and RNA and can be concurrently run with the samples. All the markers stain well with common nucleic acid stains.
Read More
Protocol for high fidelity amplification of long PCR fragments up to 22kb from complex DNA mixtures and up to 40kb from simple DNA mixtures.
Read More

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