Overview

  • Product name

    Bromothymol blue, pH indicator
  • Description

    pH indicator.
  • Alternative names

    • BTB
    • Dibromothymolsulfophthalein
  • Biological description

    pH indicator for weak acids and bases (pH range from 6.0 (yellow) to 7.6 (blue)). Also used as a stain to define cell walls or nuclei under the microscope.

  • CAS Number

    76-59-5
  • Chemical structure

    Chemical Structure

Properties

  • Chemical name

    4,4'-(1,1-Dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[2-bromo-3-methyl-6-(1-methylethyl)phenol]
  • Molecular weight

    624.38
  • Molecular formula

    C27H28Br2O5S
  • Storage instructions

    Store at Room Temperature. Store under desiccating conditions. The product can be stored for up to 12 months.
  • 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

This product has been referenced in:

  • Schumacher J  et al. The transcription factor BcLTF1 regulates virulence and light responses in the necrotrophic plant pathogen Botrytis cinerea. PLoS Genet 10:e1004040 (2014). Read more (PubMed: 24415947) »
  • Guo Z  et al. A Legionella effector modulates host cytoskeletal structure by inhibiting actin polymerization. Microbes Infect N/A:N/A (2013). Read more (PubMed: 24286927) »
  • Das Gupta V & Cadwallader DE Determination of first pKa' value and partition coefficients of bromothymol blue. J Pharm Sci 57:2140-2 (1968). Read more (PubMed: 5708357) »

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