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Molecular Probes™ Alexa Fluor™ 555 Hydrazide Non-distribution product as customer accommodation.

Alexa Fluor™ 555 Hydrazide

Manufacturer:  Molecular Probes™ A20501MP

Catalog No. A20501MP


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Description

Description

Alexa Fluor™ 555 Hydrazide is useful as a cell tracer and as a reactive dye for labeling aldehydes or ketones in polysaccharides or glycoproteins. Alexa Fluor™ 555 is a bright, orange fluorescent dye. Used for stable signal generation in imaging and flow cytometry, Alexa Fluor™ 555 dye is water soluble and pH-insensitive from pH 4 to pH 10. In addition to reactive dye formulations, we offer Alexa Fluor™ 555 dye conjugated to a variety of antibodies, peptides, proteins, tracers, and amplification substrates optimized for cellular labeling and detection (learn more).

Detailed information about this AlexaFluor™ hydrazide:

  • Fluorophore label : Alexa Fluor™ 555 dye
  • Reactive group: hydrazide
  • Reactivity: Aldehydes or keytones in polysaccharides or glycoproteins
  • Ex/Em of the conjugate: 554/567 nm
  • Extinction coefficient: 159,000 cm-1M-1
  • Spectrally similar dyes: TRITC, Cy3
  • Molecular weight: ~1,150

    Cell Tracking and Tracing Applications
    Alexa Fluor™ hydrazides and hydroxlamines are useful as low molecular weight, membrane-impermeant, aldehyde-fixable cell tracers, exhibiting brighter fluorescence and greater photostability than cell tracers derived from other spectrally similar fluorophores. They are easily loaded into cells by microinjection, infusion from patch pipette, or uptake induced by our Influx™ Pinocytic Cell-Loading Reagent. Learn more about cell tracking and tracing.

    Glycoprotein and Polysaccharide Labeling Applications
    The Alexa Fluor™ hydrazides and hydroxlamines are reactive molecules that can be used to add a fluorescent label to biomolecules containing aldehydes or ketones. Aldehydes and ketones can be introduced into polysaccharides and glycoproteins by periodate-mediated oxidation of vicinal diols. Galactose oxidase can also be used to oxidize terminal galactose residues of glycoproteins to aldehydes.

    Hydrazide vs Hydroxylamine
    Hydrazine derivatives react with ketones and aldehydes to yield relatively stable hydrazones. Hydroxylamine derivatives (aminooxy compounds) react with aldehydes and ketones to yield oximes. Oximes are superior to hydrazones with respect to hydrolytic stability. Both hydrazones and oximes can be reduced with sodium borohydride (NaBH4) to further increase the stability of the linkage.

    Learn More About Protein and Antibody Labeling
    We offer a wide selection of Molecular Probes™ antibody and protein labeling kits to fit your starting material and your experimental setup. See our Antibody Labeling kits or use our Labeling Chemistry Selection Tool for other choices. To learn more about our labeling kits, read Kits for Labeling Proteins and Nucleic Acids—Section 1.2 in The Molecular Probes™ Handbook.

    We’ll Make a Custom Conjugate for You
    If you can’t find what you’re looking for in our online catalog, we’ll prepare a custom antibody or protein conjugate for you. Our custom conjugation service is efficient and confidential, and we stand by the quality of our work. We are ISO 9001:2000 certified.

    Related Products
    DMSO (dimethylsulfoxide) (D12345)
    Antibody Conjugate Purification Kit for 0.5-1 mg (A33086)
    Antibody Conjugate Purification Kit for 20-50µg (A33087)
    Antibody Conjugate Purification kit for 50-100µg (A33088)
  • Specifications

    Specifications

    Alexa Fluor™ 555 Hydrazide, 1mg, Red, Solid, ∽1150 Molecular Weight, Alexa Fluor™ 555 Label, Aldehyde, Carboxylic Acid, Ketone Chemical Reactivity, 554/567nm Excitation/Emission Wavelength, Used for Cell Tracing and Tracking, Labeling Che
    Red
    Alexa Fluor™ 555
    Alexa Fluor™ 555 Hydrazide
    1mg
    554nm
    HPLC, 92% at 556nm
    Solid
    Cell tracing and tracking, labeling chemistry
    4 to 10
    Room temperature
    ∽1150kDa
    567nm
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