Fluorescent Dyes

Chemical dyes have been shown to be effective fluorescence tools in studying proteins, nucleic acids, lipid, carbohydrates, viruses, bacteria, cells, tissues, lymphokines, GPCRs, hormones and drugs.

  • Cyanine dyes can impart prominent fluorescence for detection and characterization of the study subjects. The sulfo cyanine series offer the benefit of being water-soluble with enhanced photostability and improved quantum yields. We also offer cyanine probes having reactive groups for direct bio-conjugations.
  • Fluorescein and Rhodamine dyes are widely used classic fluorescence tools. Fluorescein sodium salt, for example, has exhibited clinical indications in retinal demarcation. We also offer products having reactive groups for direct bio-conjugations.
  • Azo and Triphenylmethane dyes exhibit a plethora of applications ranging from pH indication, metal ions complexation and textile pigmentation, and they also play active roles in biological and histological staining studies.

  • Cyanine Fluorescent Dyes
  • Fluorescein & Rhodamine Dyes
  • Classic Azo and Triphenylmethane-type Dyes
  • Structure Details
    Product Name: Basic yellow 2 (Auramine O)
    Order number: 50P129426
    CAS: 2465-27-2
    Purity: 95%
    Appearance: solid
    MF: C17H22ClN3
    MW: 303.834
    MP: n.a. oC

    Description:
    It is used with Rhodamine B as an auramine-rhodamine stain to stain acid-fast organisms, e.g. Mycobacterium, where it forms a complex with the mycolic acid found in its cell wall.
    Product Name: Quinoline Yellow
    Order number: 50P130096
    CAS: 8004-92-0
    Purity: 70%
    Appearance: solid
    MF: C18H9NNa2O8S2
    MW: 477.369
    MP: n.a. oC

    Description:
    It is applied in the compositions of skin, lips, or body cosmetics. Copper nanoclusters have been developed as an efficient fluorescence sensing platform for quinoline yellow in food.
    Product Name: 2-Methylbenzothiazole
    Order number: 50P132072
    CAS: 120-75-2
    Purity: 98%
    Appearance: solid
    MF: C8H7NS
    MW: 149.211
    MP: n.a. oC

    Description:
    The 2-CH3 benzothiazole with its intrinsic properties presents opportunities to be exploited chemically.
    Product Name: Allura Red AC
    Order number: 50P152016
    CAS: 25956-17-6
    Purity: 95%
    Appearance: solid
    MF: C18H14N2Na2O8S2
    MW: 496.416
    MP: >300 oC

    Description:
    In food industry, the dye fluorescence is weak in low viscosity fluids but its quantum yield, emission intensity and lifetime increase significantly with an increase in medium viscosity.
    Product Name: Phenolphthalein
    Order number: 50P152721
    CAS: 77-09-8
    Purity: 95%
    Appearance: solid
    MF: C20H14O4
    MW: 318.328
    MP: 261-263 oC

    Description:
    Phenolphthalein is a pH indicator. A phenolphthalein-based fluorescent probe has been studied for the sequential sensing of Al3+ and F- ions in aqueous medium in live cells.
    Product Name: Disperse Yellow 3
    Order number: 50P174044
    CAS: 2832-40-8
    Purity: 98%
    Appearance: solid
    MF: C15H15N3O2
    MW: 269.304
    MP: 268-270 oC

    Description:
    This azo dye product of low aqueous solubility, used to color fabric polymers, wools, furs, cellulose acetate, polystyrene and other thermoplastics.