Protein Expression Enzymes Substrates Products (6)

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  • Image of IPTG (Isopropyl-beta-D-Thiogalactopyranoside)

    bioWORLD

    Isopropyl-ß-D-Thiogalactopyranoside. An inducer of ß-galactosidase used to promote the expression of proteins in cells controlled by the lac operator system. For blue/white screening, 0.1 mM final IPTG concentration in LB (Luria Broth) media is recommended. Biotechnology Grade...

  • Image of TMB (Tetramethylbenzidine)Membrane Subs

    bioWORLD

    One component ulta-sensitive microwell peroxidase substrate with low background. It is a unique, aprotic solvent free formulation and a non- hazardous substrate measurable at 650nm or 450nm stopped. Sold as 2 x 100mL or 1L.

  • Image of Stop Reagent, 405/410 nm

    bioWORLD
    Item #:
    C994F40

    A proprietary, dry blend, acidic formulation to stop BioFX 1 component ABST reaction. Changes blue ABST microwell reaction to yellow to red at 405/410nm, in 20 to 60 minutes. Quantity: 100ml

  • Image of Stop regeant, 450 nm

    bioWORLD
    Item #:
    C994F41

    A proprietary, dry blend, acidic formulation to stop BioFX 1 component TMB reaction. Tetramethyl benzidine (TMB) is a noncarcinogenic analog of benzidine, which is used as the substrate for enzyme immunoassays using horseradish proxidase conjugated antibodies and molecular probes. Changes blue TMB...

  • Image of TMB One™, Microwell Sustrate

    bioWORLD
    Item #:
    C994F42

    One Component Peroxidase Substrate, a high sensitivity, high performance substrate solution, with a stable, easy to use formulation. 

  • Image of Calbiochem® p-Nitrophenyl Phosphate

    MilliporeSigma
    Item #:
    C953H45

    This p-Nitrophenyl Phosphate is validated for use in ELISA. Excellent substrate for alkaline phosphatase-based ELISA assays. Produces yellow soluble end product that can be read at 405 nm to 410 nm. Both kinetic and endpoint determinations can be performed. Supplied as ready-to-use. Supplied as a...

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