Standard Fluorophores

Marker Gene Technologies, Inc. provides a variety of High Purity Fluorophores for use as standards for Cell Biology and Enzymology applications.

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  1. 4-Trifluoromethylumbelliferone (TFMU)

    4-Trifluoromethylumbelliferone (TFMU)

    $37.37

    This slightly longer wavelength analog of 4-methylcoumarin (4-MU) has a pKa that more closely matches physiological pH values. Learn More
  2. Resorufin

    Resorufin

    $22.37

    Red fluorophore standard. Widely used in Amplex Red type enzyme assay systems. Learn More
  3. Fluorescein

    Fluorescein

    $29.98

    Widely used green fluorescent dye for cell staining. Learn More
  4. D-Luciferin

    D-Luciferin

    $93.56

    Primary substrate of the firefly luciferase light producing system. Learn More
  5. Rhodol

    Rhodol

    $98.80

    Highly fluorescent dye useful for oligonucleotide, antibody and protein labeling studies and for the preparation of peptide and esterase substrates. Learn More
  6. 3-Phenylumbelliferone

    3-Phenylumbelliferone

    $44.86

    pH indicator for use in the physiological range (pKa 7.8) Learn More
  7. 3-Phenylumbelliferone 7-O-phosphate, bis pyridine salt

    3-Phenylumbelliferone 7-O-phosphate, bis pyridine salt

    $89.84

    Alkaline phosphatase substrate which releases the bright green fluorescent dye, 3-phenylumbelliferone, at the site of enzyme activity (EX = 383 nm ; EM = 472 nm). Learn More
  8. Bromoxynil glucuronic acid methyl ester

    Bromoxynil glucuronic acid methyl ester

    $95.40

    Bromoxynil derivative which can be used to selectively ablate GUS-positive cells and tissues in plant systems. The methyl ester helps with cell permeation in vivo. Learn More

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