Invitrogen Ultra-Low Molecular Weight DNA Ladders are designed for sizing and approximate quantification of double-stranded DNA fragments in the range of 10 bp - 300 bp. . The ultra-low molecular weight DNA ladder consists of 9 chromatographically purified individual DNA fragments with a 100 bp reference band for easy orientation.

Ultra-low molecular weight DNA ladders are ideal for DNA fragment separation using 4–5% agarose gels.

Ultra-low molecular weight DNA ladder features:
•Distinctive, clear bands—Chromatographically purified fragments provide consistent and reliable results
• Convenient—Pre-mixed 6X TrackIt Cyan/Yellow loading buffer makes it easy to track sample DNA migration
• Accurate—Gets the exact amount of DNA in each band
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Product Usage
Double-stranded DNA molecular weight standards can be visualized on 4–5% agarose gels after staining with ethidium bromide or SYBR Safe. This molecular weight standard is designed with DNA bands of uniform intensity, making it easy to see each band clearly. The exact amount of DNA in each band allows for approximate quantification of sample DNA.

This molecular weight standard can be radiolabeled using T4 polynucleotide kinase or T4 DNA polymerase.