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Vector Laboratories offers a diverse catalog of fluorescent dyes engineered to support a wide range of applications

With multiple chemistries for easy conjugation to a variety of biomolecules, Vector fluorophores meet a wide range of scientific research needs. Our portfolio includes fluorescent dyes with top-tier performance, covering the full spectral range from UV to near-infrared, and featuring multiple reactive groups for versatile labeling. Backed by robust technical support, rigorous quality standards, and scalable manufacturing, Vector Laboratories ensures cost-effective solutions for research and development in academia and industry.

B aal long
Wide range

Comprehensive
Product Portfolio

An array of functionalized fluorophores for numerous applications

  • Broad spectral coverage
  • A wide selection of reactive groups and fluorescent dye types
  • Unique performance characteristics
Quality

Superior
Quality & Consistency

Enhanced performance backed by a robust quality system

  • High purity
  • Lot-to-lot consistency
  • Experienced technical support
Price

Cost-Effective
Research Solutions

Low material costs without
sacrificing performance

  • Affordable alternatives to popular brands with comparable results
  • Flexible sizing to fit a variety of project budgets
Spectral range and brightness comparison chart for AZDye and AQuora fluorophores.

Features and Benefits


Vector Laboratories provides quality fluorophores across the spectrum. Our fluorescent dyes feature a variety of reactive groups for easy bioconjugation, broad spectral coverage, and specialized functional properties to address specific research needs. Our fluorescent dyes deliver exceptional purity, brightness, photostability, and hydrophilicity to ensure optimal and reproducible results at cost-effective prices.

Comprehensive Portfolio of Fluorescent Dyes

Feature/­CriteriaAZDye™AQuora®CyanineMB DyesTAMRAIR DyesCalFluor Dyes
Excitation/­Emission RangeUV to Near IR (350-800 nm)UV to Near IR (350-800 nm)UV to Near IR (350-800 nm)Visible
(488-800 nm)
546/573 nmNear IR
(650-800 nm)
544-637 nm
Photo­stabilityHighHighModerate to HighHighModerateHighModerate to High
BrightnessHighHighModerate to HighHighHighHighModerate to High
Options for Near-Infrared ImagingYesYesYesYesNoYesNo
pH StabilitypH 4-10pH 4-9pH 4-10pH 4-9pH 5-9pH 4-10pH 6-9
Hydro­philicityHighVery High
(dPEG technology)
ModerateHighLow to ModerateHighHigh
Degree of Labeling (DOL) FlexibilityModerateVery HighModerateHighModerateModerateModerate
Fluorescent only when conjugatedNoNoNoNoNoNoYes

Vector Laboratories’ AZDye™ vs Alexa Fluor® Performance: Fluorescent Intensity

Alexa vs azdyes
Alexa 647
Small Bowel, Alexa Fluor® 647, DOL 5.2
Azdye 647
Small Bowel, AZDye 647, DOL 5.5

Goat x Mouse IgG were labeled with either AZDye NHS ester or Alexa Fluor® NHS ester and purified on ÄKTA avant™ chromatography system. Degree of Labeling (DOL) was measured, and conjugates with similar DOL were tested in ELISA and Immunofluorescence (IF).

Immunofluorescence Workflow

Imm workflow

Comprehensive Applications of Fluorescent Dyes

Choose the optimal fluorescent dye for your research

ApplicationsAZDye™AQuora®CyanineMB DyesTAMRAIR DyesCalFluor Dyes
In Vivo Appli­cations
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(esp NIR Dyes)
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(esp NIR Dyes)
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(esp NIR Dyes)
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(esp NIR Dyes)
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(esp NIR Dyes)
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Live Cell Imaging
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Immuno­fluorescence
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Flow Cytometry
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FLISA
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Subcellular Localization
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Multi­plexing
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FRET
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(Cy3-Cy5 pairs)
Limi­ted
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Limi­ted
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Limi­tedLimi­ted
Oligo­nucleotide Labeling
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Peptide/­Protein Labeling
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Bioorthogonal Conjugation
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Resources

Full List of Fluorophore Properties

Choose the optimal fluorescent dye for your research by comparing the performance characteristics of our products.

Tech Note

Data in this Tech Note demonstrates that Vector’s AZDye™ fluorescent dyes deliver comparable performance to Alexa Fluor® products, offering high-quality results at a fraction of the cost.

Product Publications

Comprehensive list of publications where Vector Labs fluorescent dyes were used in multiple studies and applications.

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