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
  • Fluorescein & Rhodamine Dyes

    Structure Details
    Product Name: 3',6'-Dihydroxy-3-oxo-spiro[isobenzofuran-1(3H)-9'-[9H]xanthene]-6-carboxylic acid
    Order number: 204456
    CAS: 3301-79-9
    Purity: >=95%
    Appearance: solid
    MF: C21H12O7
    MW: 376.32
    MP: n.a. oC

    Description:
    This product is used for fluorescence labeling.
    Product Name: 5-FAM, SE (5-Carboxyfluorescein N-succinimidyl ester)
    Order number: 204458
    CAS: 92557-80-7
    Purity: >=95%
    Appearance: solid
    MF: C25H15NO9
    MW: 473.393
    MP: n.a. oC

    Description:
    This fluorescein dye has a reactive NHS group for bioconjugation via tagging the primary amine group existed in proteins and nucleic acids.
    Product Name: 6-FAM, SE
    Order number: 204459
    CAS: 92557-81-8
    Purity: >=95%
    Appearance: solid
    MF: C25H15NO9
    MW: 473.393
    MP: n.a. oC

    Description:
    This fluorescein dye has a reactive NHS group for bioconjugation via tagging primary amine group existed in proteins and nucleic acids.
    Product Name: 5-FITC
    Order number: 204460
    CAS: 3326-32-7
    Purity: >=95%
    Appearance: solid
    MF: C21H11NO5S
    MW: 389.381
    MP: n.a. oC

    Description:
    This fluorescein dye product tags peptides and proteins that contain cysteine or lysine residues. It forms thiourea through dithiocarbamate.
    Product Name: Phenol Red
    Order number: 50P600238
    CAS: 143-74-8
    Purity: >=95%
    Appearance: solid
    MF: C19H14O5S
    MW: 354.376
    MP: >300 oC

    Description:
    Phenol Red is a dye that changes color in response to changes in pH levels. It's used to determine kidney function and as a pH indicator in various applications.
    Product Name: 6-FITC (3',6'-Dihydroxy-6-isothiocyanatospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one)
    Order number: 204576
    CAS: 3326-31-6
    Purity: >=95%
    Appearance: solid
    MF: C21H11NO5S
    MW: 389.381
    MP: n.a. oC

    Description:
    Fluorescein is used with antibodies for flow cytometry. This reactive dye can bind to proteins having cysteine or lysine residues to forms a stable thiourea linkage.