
Color Prestained Protein Standard, Broad Range (10-250 kDa)
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New England Biolabs
The Color Prestained Protein Standard, Broad Range is a mixture of highly pure, recombinant, prestained proteins, covalently coupled with a blue chromophore, and two reference bands (one orange and one green at 72 kDa and 26 kDa, respectively), that resolves into 11 sharp bands when electrophoresed.
- Allows approximate molecular weight determination when performing SDS-PAGE analysis
- Applications include verification of Western transfer efficiency on membranes and fluorescent imaging of SDS-PAGE
- Direct loading, additional loading buffer and heat incubation not required
- Recombinant proteins with no detectable protease contaminating activities
- Optimal stability for up to 24 months

OneTaq Hot Start Quick-Load 2X Master Mix with Standard Buffer
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New England Biolabs
The ONE polymerase for your endpoint PCR needs
OneTaq DNA Polymerase is an optimized blend of Taq and Deep Vent™ DNA polymerases for use with routine and difficult PCR experiments.
- Unique hot start formulation eliminates nonspecific amplification and does not require a separate activation step
- Obtain high yields across a wide range of AT / GC content
- Offered with inert tracking dyes for easy and direct loading of PCR products onto gels

Monarch® Total RNA Miniprep Kit
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New England Biolabs
Quickly and easily purify up to 100 µg of high quality total RNA from multiple sample types – all with Monarch Total RNA Miniprep kit!
- For use with blood, cells and tissues
- Also works with tough to lyse samples (bacteria, yeast, plant)
- Effectively purifies total RNA of all sizes, including small RNAs >20 nt
- Efficient genomic DNA removal (column and DNase I-based)
- Contains Proteinase K for processing of tissues and blood samples
- Includes RNA Protection Reagent for sample preservation
- Excellent value
- Kit components available separately
** You may also interest in RNA Purification from Buccal Swabs, Nasopharyngeal Samples (swab or aspirate) and Saliva using the Monarch Total RNA Miniprep Kit.

Monarch PCR and DNA Cleanup Kit, NEB
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New England Biolabs
Quickly and easily purify high-quality DNA from PCR and other enzymatic reactions.
- Elute in as little as 6 μl.
- Prevent buffer retention and salt carry-over with optimized column design.
- Save time with fast, user-friendly protocols.
- No need to monitor pH.
- Protocol modification allows for ssDNA purification, oligonucleotide purification, and purification of other small DNA fragments.
- Buffers and columns available separately.
- Significantly less plastic used when compared with other kits.
- Responsibly-sourced and recyclable packaging.

Monarch DNA Gel Extraction Kit, NEB
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New England Biolabs
Quickly and easily purify DNA from agarose gels with high yields.
- Elute in as little as 6 μl.
- Prevent buffer retention and salt carry-over with optimized column design.
- Save time with fast, user-friendly protocols
- No need to monitor pH or add isopropanol.
- Buffers and columns available separately.
- Significantly less plastic used when compared with other kits.
- Responsibly-sourced and recyclable packaging.

Monarch Plasmid Miniprep Kit
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New England Biolabs
The Monarch Plasmid Miniprep Kit is a rapid and reliable method for the purification of up to 20 μg of high quality plasmid DNA.
- Elute in as little as 30 μl
- Prevent buffer retention and salt carry-over with optimized column design
- Reduce hands on time with faster protocols and less spin time
- Monitor completion of certain steps using colored buffer system
- No need to add RNase before starting
- Easily label columns using tab and frosted surfaces
- Buffers and columns available separately
- Significantly less plastic used when compared with other kits
- Responsibly-sourced and recyclable packaging
- No hazardous materials fees

Blue Prestained Protein Standard, Broad Range (11-250kDa)
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New England Biolabs
This product is a direct replacement of NEB# P7706 (Blue Prestained Protein Standard, Broad Range 11-190 kDa).
The Blue Prestained Protein Standard, Broad Range is a mixture of highly pure, recombinant, prestained proteins, covalently coupled with a blue chromophore, that resolves into 11 sharp bands when electrophoresed.
– Allows approximate molecular weight determination when performing SDS-PAGE analysis.
– Applications include verification of Western transfer efficiency on membranes and fluorescent imaging of SDS-PAGE.
– Direct loading, additional loading buffer and heat incubation not required
– Recombinant proteins with no detectable protease contaminating activities
– Optimal stability for up to 24 months

Unstained Protein Standard, Broad Range (10-200 kDa)
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New England Biolabs
This product is a direct replacement of NEB# P7704 (Unstained Protein Standard, Broad Range 10-200 kDa).
The Unstained Protein Standard, Broad Range is a mixture of highly pure, recombinant proteins that resolves into 13 sharp bands from 10-200 kDa when electrophoresed and stained with Coomassie Brilliant Blue R-250 or other commercially available, ready-to-use protein stains.
– Allows accurate molecular weight determination when performing SDS-PAGE analysis.
– Direct loading, additional loading buffer and heat incubation not required
– Recombinant proteins with no detectable protease contaminating activities
– Optimal stability for up to 24 months

Quick-Load 1 kb Extend DNA Ladder – 125 gel lanes
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New England Biolabs
- Size range: 0.5 kb to 48.5 kb
- Convenient, ready-to-load format
- Formulated with bromophenol blue dye
- Easy to identify reference bands
- Suitable for 125 gel lanes

50 bp DNA Ladder, NEB
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New England Biolabs
This product is available in our Quick-Load Purple format – enjoy the convenience of a ready-to-load format.
- Size range: 50 bp – 1350 bp
- Supplied with a free vial of Gel Loading Dye, Purple (6X), no SDS (NEB #B7025)
- Easy-to-identify reference bands
- Small size suitable for 200 gel lanes; large size suitable for 1000 gel lanes

PCR Marker
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New England Biolabs
- Size range: 50 bp to 766 bp
- Value pricing
- Supplied with free vial of Gel Loading Dye, Purple (6X), no SDS (NEB #B7025).
- Easy to identify reference bands
- Small size suitable for 100 gel lanes; large size suitable for 500 gel lanes
1 kb DNA Ladder, NEB
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New England Biolabs
This 1 kb DNA ladder is available in Quick-Load Purple format – enjoy the convenience of a ready-to-load format.
1 kb DNA ladder from New England Biolabs (NEB) is suitable for use with molecular weight standard for agarose gel electrophoresis. A number of proprietary plasmids are digested to completion with appropriate restriction enzymes to yield 10 bands, ranging from 0.5 to 10 kilobases. NEB set 3.0 kb fragment as a reference band by increasing the intensity of that band.
- Size range: 500 bp to 10 kb
- Value pricing
- Supplied with a free vial of Gel Loading Dye, Purple (6X), no SDS (NEB #B7025).
- Easy to identify reference bands
- Small size suitable for 200 gel lanes; large size suitable for 1000 gel lanes

1 kb Plus DNA Ladder, NEB
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New England Biolabs
This 1kb plus DNA ladder, NEB was previously named the 2-Log DNA Ladder. There have been no changes to product formulation or specifications. This product is available in Quick-Load Purple format – enjoy the convenience of a ready-to-load format.
A single convenient ladder for 100 bp up to 10 kb (100 bp and 1 kb ladder in one!)
- Value pricing
- Supplied with a free vial of Gel Loading Dye, Purple (6X), no SDS (NEB #B7025)
- Easy to identify reference bands
- Small size suitable for 200 gel lanes; large size suitable for 1000 gel lanes

microRNA Marker
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New England Biolabs
- Contains 2 synthetic oligonucleotides: 17, 21 and 25 residues
- Convenient, ready-to-load format
- For use with denaturing polyacrylamide gels and Northern blots

Quick-Load Purple Low Molecular Weight DNA Ladder – 125 gel lanes
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New England Biolabs
- Convenient, ready-to-load format with NEB’s proprietary purple loading dye
- Size range: 25bp to 766 bp
- Sharp bands
- No UV Shadow
- Easy to identify reference bands
- Supplied with 1 vial of Gel Loading Dye, Purple (6X), no SDS (NEB #B7025)
- Suitable for 125 gel lanes

Quick-Load Purple 50 bp DNA Ladder – 250 gel lanes
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New England Biolabs
- Convenient, ready-to-load format with NEB’s proprietary purple loading dye
- Size range: 50 bp to 1,350 bp
- Sharp bands
- No UV Shadow
- Easy to identify reference bands
- Supplied with 1 vial of Gel Loading Dye, Purple (6X), no SDS (NEB #B7025)
- Suitable for 250 gel lanes

Quick-Load Purple 1 kb DNA Ladder – 125 gel lanes, NEB
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New England Biolabs
Quick-Load Purple 1kb DNA Ladder, NEB is a molecular weight DNA marker with one tracking dye. It is a pre-mixed and a ready-to-load DNA ladder, which provides convenience to you.
Features of Quick-Load Purple 1kb DNA Ladder, NEB:
- Convenient, ready-to-load format utilizing NEB’s proprietary purple loading dye
- Size range: 500 bp to 10 kb
- Sharp bands
- No UV Shadow
- Easy to identify reference bands
- Now supplied with 1 vial of Gel Loading Dye, Purple (6X), no SDS (NEB #B7025)

Quick-Load Purple 100 bp DNA Ladder – 125 gel lanes
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New England Biolabs
Quick-Load® Purple 100 bp DNA Ladder is a pre-mixed, ready-to-load molecular weight DNA marker containing one tracking dye. Tracking dye does not leave a shadow under UV light.
- Convenient, ready-to-load format with NEB’s proprietary purple loading dye
- Size range: 100 bp to 1,517 bp
- Sharp bands
- No UV Shadow
- Easy to identify reference bands
- Supplied with 1 vial of Gel Loading Dye, Purple (6X), no SDS (NEB #B7025)

Quick-Load Purple 1kb Plus DNA Ladder (0.1-10.0 kb) – 250 gel lanes
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New England Biolabs
This product was previously named the Quick-Load® Purple 2-Log DNA Ladder. There have been no changes to product formulation or specifications.
- Convenient, ready-to-load format with NEB’s proprietary purple loading dye
- Size range: 100 bp to 10 kb (100 bp and 1 kb ladder in one!)
- Sharp bands
- No UV Shadow
- Easy to identify reference bands
- Supplied with 1 vial of Gel Loading Dye, Purple (6X), no SDS (NEB #B7025)

Supercoiled DNA Ladder – 100 gel lanes
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New England Biolabs
The Supercoiled DNA ladder contains 9 proprietary supercoiled plasmids, ranging in size from 2 to 10 kb, that are suitable for use as supercoiled molecular weight standards for agarose electrophoresis. The 5 kb plasmid has an increased intensity to serve as a reference band.
- Recommended gel percentage range: 0.6-1%
- Optimum separation on 0.8%
- Recommended migration conditions: no more than 5V/cm (distance between electrodes), for no more than 60 minutes

Quick-Load 1kb Plus DNA Ladder – 250 gel lanes
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New England Biolabs
This product was previously named the Quick-Load® 2-Log DNA Ladder. There have been no changes to product formulation or specifications.This product is available in Quick-Load Purple format – enjoy sharper bands, no UV shadow, and a lower price.
- Size range: 100 bp to 10 kb
- Convenient, ready-to-load format
- Formulated with bromophenol blue dye
- Easy to identify reference bands
- Suitable for 250 gel lanes