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You Searched For: Assays

An assay is an investigative procedure in laboratory medicine, pharmacology, environmental biology, and molecular biology for qualitatively assessing or quantitatively measuring the presence or functional activity of the analyte, or the entity being targeted by the assay. Generally, assays involve biological materials or phenomena which tend to be intrinsically more complex in composition or in behavior than what can be handled by traditional chemical analysis and titration.

An assay is an investigative procedure in laboratory medicine, pharmacology, environmental biology, and molecular biology for qualitatively assessing or quantitatively measuring the presence or functional activity of the analyte, or the entity being targeted by the assay. Generally, assays involve biological materials or phenomena which tend to be intrinsically more complex in composition or in behavior than what can be handled by traditional chemical analysis and titration.


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Product Image-97064-924

VWR® Bradford Method Protein Assay Kit

Supplier: VWR
Description: The Bradford Protein Assay is the preferred colorimetric assay for quantifying total protein concentration. Based upon complex formation between basic and aromatic amino acid residues with Coomassie® Brilliant Blue G-250 dye, the Bradford method is easier, faster, and more sensitive than the Lowry method. The standard protocol is used for measuring 10-100 μg of protein and the microassay is used for measuring 1-10 μg of protein. For maximum convenience, Bradford Reagent and 0.5 mg/ml BSA standard solution are offered individually or as components of a kit.

SDS Certificates

Product Image-76501-098

qScript® Ultra Flex Kits, Quantabio

Supplier: Quantabio
Description: Faster, longer, tougher next gen cDNA synthesis with flexible priming.

Product Image-77590-324

sparQ RNA-Seq HMR Kits

Catalog Number: (77590-324)
Supplier: Quantabio
Description: Ultra FAST RNA library prep with integrated rRNA and globin depletion.

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Product Image-10147-342

AzureRed Fluorescent Protein Stain, Azure BioSystems

Catalog Number: (10147-342)
Supplier: Azure Biosystems
Description: AzureRed Fluorescent Protein Stain is a quantitative total protein stain for blots and blots with the sensitivity to detect less than 1 ng of protein per band or spot

SDS Product available on GSA Advantage®


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Chemiluminescent Western Blot Kit, Rockland Immunochemicals

Catalog Number: (RLKCA004)
Supplier: Rockland Immunochemical
Description: This Chemiluminescent Western Blot Kit allows for the detection of primary Goat polyclonal antibodies provided by the user

Small Business Enterprise Minority or Woman-Owned Business Enterprise


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25-OH Vitamin D, Total ELISA, Gold Standard Diagnostics

Catalog Number: (10199-926)
Supplier: Gold Standard Diagnostics
Description: Vitamin D testing offers important information for general physicians and specialists alike
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Cellular Senescence Activity Assay, Enzo Life Sciences

Catalog Number: (76003-296)
Supplier: Enzo Life Sciences
Description: Highly reproducible SA-β-gal activity kit
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ELISA Kit, Quest 5-hmC DNA, Zymo Research

Supplier: Zymo Research
Description: The Quest 5-hmC DNA ELISA kit is both sensitive and specific and can be used to accurately detect 5-hmC DNA in a variety of samples. The kit is compatible with a wide range of input DNA including intact vertebrate, plant, and microbial genomic DNA, as well as enzyme-digested and mechanically sheared fragments.

Product Image-10049-716

NGAL (mouse) ELISA kit, Enzo Life Sciences

Catalog Number: (10049-716)
Supplier: Enzo Life Sciences
Description: For the quantitative determination of NGAL in mouse urine, plasma, serum, tissue extracts, or culture supernatants.
Product Image-10049-632

CD14, Soluble (Human) ELISA Kit, Enzo Life Sciences

Catalog Number: (10049-632)
Supplier: Enzo Life Sciences
Description: For the quantitative determination of soluble human CD14 in serum, plasma and cell culture medium.
Product Image-89141-754

Nitric Oxide (Total), Detection Kit, Enzo Life Sciences

Catalog Number: (89141-754)
Supplier: Enzo Life Sciences
Description: For the quantitative determination of total Nitric Oxide in culture supernatants, plasma, serum, saliva, and urine from any species
Product Image-89156-482

Matrix Metalloproteinase-14 (MMP-14) Colorimetric Drug Discovery Kit, Enzo Life Sciences

Catalog Number: (89156-482)
Supplier: Enzo Life Sciences
Description: A QuantiZymeTM Assay System
Product Image-89156-036

Annexin V-Cy3 Apoptosis Detection Kit, Enzo Life Sciences

Supplier: Enzo Life Sciences
Description: For the detection of apoptotic cells by flow cytometry.

Product Image-89165-452

Ubiquitinylation Kit, Enzo Life Sciences

Catalog Number: (89165-452)
Supplier: Enzo Life Sciences
Description: Versatile tool for generation of ubiquitin-E2 thioesters.
Product Image-89155-916

Annexin V (Human) ELISA Kit, Enzo Life Sciences

Catalog Number: (89155-916)
Supplier: Enzo Life Sciences
Description: For the quantitative detemination of human annexin V in cell culture supernatant and serum.
Product Image-89156-500

DPPIV Drug Discovery Kit, Enzo Life Sciences

Catalog Number: (89156-500)
Supplier: Enzo Life Sciences
Description: The DPPIV Drug Discovery Kit is a complete assay system designed to screen DPPIV inhibitors, a potential therapeutic target, providing enough material to perform at least 96 assays.
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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
In order to process your orders without delay, we request that you provide the required business documentation to purchase this product.

To order chemicals, medical devices, or other restricted products please provide identification that includes your business name and shipping address via email CMD_NA@vwr.com or fax 484.881.5997 referencing your VWR account number . Acceptable forms of identification are:

  • State issued document with your organization's Federal Tax ID Number
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  • City or County issued Business License
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  • Any other ID issued by the State that includes the business name and address

* Please note if your account is within the State of California two of these pieces of identification will be required.
VWR will not lift restrictions for residential shipping addresses.

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The original product is no longer available. The replacement shown is available.
This product is no longer available. Alternatives may be available by searching with the VWR Catalog Number listed above. If you need further assistance, please call VWR Customer Service at 1-800-932-5000.
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