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: Bromothymol blue
    Order number: 100987
    CAS: 76-59-5
    Purity: >=95%
    Appearance: solid
    MF: C27H28Br2O5S
    MW: 624.384
    MP: 202 oC oC

    Description:
    Bromothymol blue is a pH indicator. It is mostly used in applications that require measuring substances that would have a relatively neutral pH (near 7).
    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 NHS reactive group for bioconjugation. By reaction with the primary amine group existed in proteins, nucleic acids and drugs, these molecules are covalently labeled.
    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 NHS reactive group for bioconjugation. By reaction with the primary amine group existed in proteins, nucleic acids and drugs, these molecules are covalently labeled.
    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 has an isothiocyanate reactive group capable of conjugating with peptides and proteins having cysteine residue (containing sulfhydryl SH) and lysine residue (containing terminal amine NH2). Addition of SH to isothiocyanate is faster to form dithiocarbamatewhich is converted to more stable thiourea.
    Product Name: Victoria Blue B
    Order number: 50P579594
    CAS: 2580-56-5
    Purity: >=95%
    Appearance: solid
    MF: C33H32ClN3
    MW: 506.09
    MP: 206 oC

    Description:
    This triphenylmethane-type dye product is used in quantitative determination of phospholipids. It is used to study shape memory polymers.