Labeling Reagents

Labeling ReagentsMarker Gene continues to develop new and innovative fluorescent and chromogenic labeling reagents that can be used to stain or chemically label proteins, nucleic acids, carbohydrates, lipids and other biomolecules or to label cell structures or organelles. When specific antibodies or other purified biomolecules are chemically labeled with fluorescent dyes, they become fluorescent probes for detection of their target antigens in applications such as cell imaging, high-content analysis, flow cytometry, western blotting and ELISA analyses.  Protein-protein interactions can also be monitored by dual labeling in techniques such as FRET (fluorescence resonance energy transfer), fluorescence polarization analysis or two-hybrid systems. 

Our comprehensive portfolio of labeling reagents now includes high purity labeling reagents from the OliGloTM, LysoLiveTM, FionaGreenTM, AlisaRedTM and SophiaGreenTM trademarks. 

Whether your needs are for fluorescent primary of  secondary antibody labeling or for specific reagents and kits to chemically label and prepare your own probes, we almost certainly offer the product you are looking for.  Our highly trained staff is also available for custom labeling or production of specific probes for your particular application. Please see our  Custom Organic Synthesis , the categories at left or use our entire website search engine above for products relating to your specific application. 

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  1. Indocyanine Green
    Indocyanine Green
    $76.00

    Product size: 5mg

    Negatively charged dye that forms fluorescent complexes with proteins.

    Learn More

    Product ID: M0286

  2. Calcium Green™, AM - equivalent
    Calcium Green™, AM - equivalent
    $130.00
    Out of stock

    Product size: 0.5 mg

    Cell-permeant, quantitative Calcium ion indicator with high affinity and low background fluorescence. Learn More

    Product ID: M0402

  3. Calcium Green™, hexapotassium salt - equivalent
    Calcium Green™, hexapotassium salt - equivalent
    $0.00
    Out of stock

    Product size: 0.5 mg

    Cell-impermeant, quantitative Calcium ion indicator with high affinity and low background fluorescence. Learn More

    Product ID: M0401

  4. BODIPY®* 630/650-X, SE equivalent
    BODIPY®* 630/650-X, SE equivalent
    $201.00

    Product size: 5 mg

    Amine-reactive long wavelength fluorescent probe for labeling lipids and phospholipids Learn More

    Product ID: M4561

  5. 5-(6)-(((4-Chloromethyl)Benzoyl)Amino)Tetramethylrhodamine
    5-(6)-(((4-Chloromethyl)Benzoyl)Amino)Tetramethylrhodamine
    $110.00

    Product size: 1 mg

    Fluorescent thiol-reactive cell permeant probe Learn More

    Product ID: M4482

  6. 4-Chloromethyl-7-hydroxycoumarin
    4-Chloromethyl-7-hydroxycoumarin
    $68.00

    Product size: 5 mg

    Fluorescent thiol-reactive cell permeant probe Learn More

    Product ID: M4479

  7. 6-Carboxyfluorescein, succinimidyl ester
    6-Carboxyfluorescein, succinimidyl ester
    $105.00

    Product size: 10 mg

    An Amine-Reactive fluorescent probe which yields carboxyamides that are more resistant to hydrolysis than fluorescein conjugates prepared with FITC. Learn More

    Product ID: M4434

  8. Texas Red®-XX-SE
    Texas Red®-XX-SE
    $285.00

    Product size: 5 mg

    This amine-reactive Sulforhodamine 101-XX, succinimidyl ester (Equivalent to Texas Red® -X, succinimidyl ester, Trade Mark of Molecular Probes) can be used to create bright red-fluorescent bioconjugates with excitation/emission maxima at 595 and 615 nm respectively. The extra long linking arm assures the brightest signal without interfering with protein/antibody activity. Learn More

    Product ID: M2965

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