Nucleic Acid Molecular Weight Markers

Nucleic acid molecular weight markers contain nucleic acids of several pre-defined molecular weights for use as size standards in gel electrophoresis. Products include DNA and RNA ladders and fragments available with or without loading buffers, tracking dyes, and other solutions.
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GeneRuler 1 kb DNA Ladder, ready-to-use, is recommended for sizing and approximate quantification of a wide range of double-stranded DNA on agarose gels. The ladder is a mixture of chromatography-purified individual DNA fragments.
GeneRuler 100 bp DNA Ladder, ready-to-use 100 to 1000 bp is recommended for sizing and approximate quantification of a wide range of double-stranded DNA fragments on agarose or polyacrylamide gels. The ladder is a mixture of chromatography-purified individual DNA fragments.
Invitrogen 1 Kb Plus DNA Ladder is designed for sizing and approximate quantification of double-stranded DNA in the range of 100 bp to 15,000 bp. 1 Kb Plus DNA Ladder consists of 18 individual chromatography-purified DNA fragments and has a reference band at 1,500 bp for easy orientation.
GeneRuler 1kb Plus DNA Ladder, ready-to-use 75 to 20,000bp is recommended for sizing and approximate quantification of a wide range of double-stranded DNA on agarose gels. The ladder is a mixture of chromatography-purified individual DNA fragments.
GeneRuler 50 bp DNA Ladder, ready-to-use, is recommended for sizing and for approximate quantification of a wide range of double-stranded DNA on agarose or polyacrylamide gels. The ladder is a mixture of chromatography-purified individual DNA fragments.
GeneRuler High Range DNA Ladder, ready-to-use, is recommended for fast sizing and approximate quantification of high molecular weight double-stranded DNA fragments in agarose gels (in 1.5 hour, 0.4% agarose gel). The ladder is a mixture of chromatography-purified individual DNA fragments.
ZipRuler Express DNA Ladder Set contains two ladders: ZipRuler Express DNA Ladder 1 and ZipRuler Express DNA Ladder 2. Both are mixtures of chromatography-purified individual DNA fragments.The set is designed for fast and highly accurate sizing of a broad range (100-20,000 bp) of DNA fragments and...
100 bp DNA Ladder Invitrogen™ Green features
Invitrogen 100 bp DNA Ladder is designed for sizing and approximate quantification of double-stranded DNA in the range of 100 bp to 2,000 bp. 100 bp DNA Ladder consists of 13 individual chromatography-purified DNA fragments and has reference bands at 2000, 1500, and 600 bp for easy orientation.
GeneRuler 100bp Plus DNA Ladder 100 to 3000bp is recommended for sizing and approximate quantification of a wide range of double-stranded DNA on agarose or polyacrylamide gels. The ladder is a mixture of chromatography-purified individual DNA fragments.
GeneRuler DNA Ladder Mix, ready-to-use, is recommended for sizing and approximate quantification of a wide range of double-stranded DNA on agarose gels. The ladder is a mixture of chromatography-purified individual DNA fragments.
Invitrogen E-Gel 1 Kb Plus Express DNA Ladder is designed for sizing and approximate quantification of double-stranded DNA in the range of 100 bp to 5,000 bp. E-Gel 1 Kb Plus Express DNA Ladder consists of nine individual chromatography-purified DNA fragments with reference bands at 1,500 and 500 bp...
Invitrogen TrackIt 50 bp DNA Ladder is ready to use and designed for sizing and approximate quantification of double-stranded DNA in the range of 100 bp to 2,500 bp. TrackIt 50 bp DNA Ladder consists of 17 individual chromatography-purified DNA fragments and has reference bands at 2500, 800, and 350...
GeneRuler Low Range DNA Ladder, ready-to-use, is recommended for sizing and approximate quantification of a wide range of double-stranded DNA fragments on agarose or polyacrylamide gels. It is ideal for denaturing polyacrylamide gel electrophoresis.
Invitrogen E-Gel 96 High Range DNA Ladder is designed for sizing and approximate quantification of double-stranded DNA in the range of 400 bp to 10,000 bp. E-Gel 96 High Range DNA Ladder consists of five individual chromatography-purified DNA fragments.
E-Gel Sample Loading Buffer is supplied as a ready-to-use 1X solution, and is formulated specifically for maximum performance on E-Gel EX gels as well as other E-Gel precast gels.
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See our nucleic acid isolation and analysis products, Exact M.W. of ssRNA (e.g., RNA Transcript): M.W. = (An x 329.2) + (Un x 306.2) + (Cn x 305.2) + (Gn x 345.2) + 159ª An, Un, Cn, and Gn are the number of each respective nucleotide within the polynucleotide. M.W.
By employing expertise in enzymology, nucleotide chemistry, and dye chemistry, we've developed a highly utilized, trusted portfolio of fluorescent, radioactive, chromogenic, and hapten DNA labeling solutions for blotting, in situ hybridization, and general molecular biology applications.
Documents & Support (172)
How can I get better separation of my bands?
How can I get better separation of my bands?