Fluorescent Probes and 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 probes 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 Probes
  • Fluorescein & Rhodamine Dyes
  • Classic Azo and Triphenylmethane-type 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

    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: Victoria Blue B
    Order number: 50P579594
    CAS: 2580-56-5
    Purity: >=95%
    Appearance: solid
    MF: C33H32ClN3
    MW: 506.09
    MP: 206 oC

    This triphenylmethane-type dye product is used in quantitative determination of phospholipids. It is used to study shape memory polymers.
    Product Name: Orange G (>80 percent of dye content)
    Order number: 50P588931
    CAS: 1936-15-8
    Purity: >=80%
    Appearance: solid
    MF: C16H10N2NaO7S2-
    MW: 429.373
    MP: 141 oC

    The Orange G as a water-soluble azo dye product is a component in the OG-6 Papanicolaou regiment to stain keratin. Beside its histological application, it can be used with other yellow dyes to stain erythrocytes in trichrome methods. It is used for demonstrating cells in the pancreas and pituitary.
    Product Name: 4-(4-Nitrophenylazo)-1-naphthol
    Order number: 50P593866
    CAS: 5290-62-0
    Purity: >=95%
    Appearance: solid
    MF: C16H11N3O3
    MW: 293.282
    MP: 277-280 oC

    This azo dye product is a pH indicator. The color turns from red-orange to yellow when the pH is decreased. It is used as a fluorescent label for enzymes. It is also used for determination of Mg.
    Product Name: Basic Brown 1
    Order number: 50P594040
    CAS: 10114-58-6
    Purity: >=95%
    Appearance: solid
    MF: C18H18N8
    MW: 346.398
    MP: n.a. oC

    This diazo dye product stains acid mucins yellow. It is also a component of Papanicolaou's solutions, used for cervical, and other smears.
    Product Name: Sudan I
    Order number: 50P608534
    CAS: 842-07-9
    Purity: >=95%
    Appearance: solid
    MF: C16H12N2O
    MW: 248.285
    MP: 131-133 oC

    This azo dye product is used to color waxes, oils and other non-aqueous liquids. It has been used to produce colored smoke. Sudan dyes are a group of lipid soluble solvent dyes often called lysochromes. By using proper solvents, Sudan I may also be used to stain some protein bound lipids in paraffin sections.