MB 488 Picolyl Azide

Catalog#
Unit Size
Price (USD)
Availability
Qty
1208-1
1 mg
$149.00
In stock
1208-5
5 mg
$395.00
In stock
1208-25
25 mg
$1,495.00
In stock

    MB™ 488 Azide is an advanced fluorescent probe that incorporates a copper-chelating motif to raise the effective concentration of Cu(I) at the reaction site to boost the efficiency of the CuAAC reaction, resulting in a faster and more biocompatible CuAAC labeling. Up to 40-fold increase of signal intensity, compared to conventional azides, was reported (see Selected References).

    Abs/Em Maxima
    501/524 nm
    Extinction Coefficient
    75,000
    Flow Cytometry Laser Line
    488 nm
    Microscopy Laser Line
    488 nm
    Spectrally Similar Dyes
    FAM, Alexa Fluor® 488, Atto™ 488, CF™ 488A dyes, DyLight™488
    Molecular weight
    857.84
    CAS
    N/A
    Solubility
    Water, DMSO
    Purity
    >90% (HPLC)
    Appearance
    Red to orange solid
    Storage conditions
    -20°C. Desiccate
    Shipping conditions
    Ambient temperature

    MB™ 488 Azide is an advanced fluorescent probe that incorporates a copper-chelating motif to raise the effective concentration of Cu(I) at the reaction site to boost the efficiency of the CuAAC reaction, resulting in a faster and more biocompatible CuAAC labeling. Up to 40-fold increase of signal intensity, compared to conventional azides, was reported (see Selected References).

    In addition, the use picolyl azides instead of conventional azides allows for at least a tenfold reduction in the concentration of the copper catalyst without sacrificing the efficiency of labeling, significantly improving biocompatibility of CuAAC labeling protocol.

    In summary, the introduction of a copper-chelating motif into azide probe leads to a substantial increase in the sensitivity and reduced cell toxicity of CuAAC detection alkyne-tagged biomolecules. This will be of special value for the detection of low abundance targets or living system imaging.

    MB™ 488 Azide is a bright, green fluorescent probe with excitation ideally suited for the 488 nm laser line. MB™ 488 is a photostable and pH-insensitive fluorescent dye that can be used in place of Fluorescein, Alexa Fluor 488®, DyLight 488® and other dyes excitable at a wavelength of 488 nm.

    MB488

    1. Jiang, H., et al. (2014). Monitoring Dynamic Glycosylation in Vivo Using Supersensitive Click Chemistry. Bioconjugate Chem.,, 25, 698-706. [PubMed]
    2. Uttamapinant, C., et al. (2012). Fast, Cell-Compatible Click Chemistry with Copper-Chelating Azides for Biomolecular Labeling. Angew. Chem. Int. Ed,., 51, 5852-56. [PubMed]
    3. Gaebler, A.,et al. (2016). A highly sensitive protocol for microscopy of alkyne lipids and fluorescently tagged or immunostained proteins. J. Lipid. Res., 57, 1934-47. [PubMed]
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