Overview

  • Product name

    Cresol red, Triarylmethane dye
  • Description

    Triarylmethane dye commonly used with lead acetate for detection of urease after PAGE.
  • Alternative names

    • 4,4'-(1,1-Dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[2-methylphenol]
    • Cresolsulfophthalein
    • O-Cresol Red
    • O-Cresolsulfonephthalein
    • o-Cresolsulfonphthalein
    see all
  • Biological description

    Triarylmethane dye commonly used with lead acetate for the detection of urease after polyacrylamide gel electrophoresis (PAGE). Also used as a pH indicator and as a tracking dye in DNA, RNA (agarose) and protein (polyacrylamide) electrophoresis. In agarose, Cresol Red runs with an apparent molecular size of approximately 125 bp DNA. Cresol Red does not inhibit Taq polymerase.

  • CAS Number

    1733-12-6
  • Chemical structure

    Chemical Structure

Properties

  • Chemical name

    4,4'-(1,1-Dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[2-methylphenol]
  • Molecular weight

    382.43
  • Molecular formula

    C21H18O5S
  • Storage instructions

    Store at Room Temperature. The product can be stored for up to 12 months.
  • Solubility overview

    Soluble in ethanol
  • Handling

    Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.

    Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.

  • Source

    Synthetic

References

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