Protein Molecular Weight Markers
Thermo Scientific™ PageRuler™ Prestained NIR Protein Ladder
A mixture of 10 proteins (11 to 250KDa) that are blue-stained and fluor-labeled for near-IR fluorescent visualization and protein sizing following electrophoresis.
Invitrogen™ SeeBlue™ Pre-stained Protein Standard
Allows you to easily monitor the progress of your gel run and is an excellent tool for judging Western transfer efficiency.
Invitrogen™ MagicMark™ XP Western Protein Standard
Specifically designed for easy and convenient protein molecular weight estimation directly on Western blots
Thermo Scientific™ Spectra™ Multicolor Low Range Protein Ladder
A mixture of six proteins and synthetic peptides (1.7 to 40kDa) for use as size standards for peptides and small proteins in gel electrophoresis and Western blotting.
Invitrogen™ Mark12™ Unstained Standard
Allows the closest estimation of molecular weight of your sample protein over a wide molecular weight range.
Invitrogen™ HiMark™ Unstained Protein Standard
Designed for analysis of high molecular weight proteins on Novex™ NuPAGE™ Tris-Acetate Gels
Thermo Scientific™ Pierce™ Unstained Protein MW Marker
A mixture of seven native proteins (14.4kDa to 116kDa) for use as size standards in protein electrophoresis (SDS-PAGE).
Invitrogen™ iBright Prestained Protein Ladder
For visualization and protein sizing during Electrophoresis and confirmation of Western blot detection.
Invitrogen™ Protein Molecular Weight Standards (broad range)
Include 11 proteins from 6500 to 205,000 daltons
Invitrogen™ BenchMark™ His-tagged Protein Standard
Used as a positive control and for molecular weight sizing in his-tagged fusion protein detection
MP Biomedicals™ Fluorescent Protein Marker
Obtain accurate molecular weight protein standards. Skip gel staining steps and estimate protein molecular weight using UV.
Cytiva Protein and Peptide Molecular Weight Markers
Run these markers to determine the molecular weight of uncharacterized protein samples with precision. Cytiva Life Sciences™ Protein and Peptide Molecular Weight Markers work by comparing unknowns with carefully selected standards.
Novus Biologicals™ Blu10 Prestained Protein Ladder
Prestained Protein Ladder
Cytiva Rainbow™ Molecular Weight Markers
Monitor progress of protein electrophoresis and assess transfer efficiency and molecular weight of blotted proteins without staining. Cytiva Life Sciences™ Rainbow™ Molecular Weight Markers use bright, distinctive colors to allow easier confirmation of transfer to blotting membranes and orientation.
MilliporeSigma™ Novagen™ Perfect Protein™ Markers, 10-225 kd
Designed for routine use in SDS-polyacrylamide gel electrophoresis, the Perfect Protein Markers enable highly accurate size determination of unknown samples.