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Catalog Number:
47645
CAS Number:
76-59-5
Bromothymol blue (0.1% in ca. 50% ethanol) [for titration]
Synonym(s):
3',3''-Dibromothymolsulfonaphthalein
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$68.75 /250ML
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Product Information

Bromothymol blue is a versatile pH indicator widely utilized in various laboratory and industrial applications. This compound is particularly effective in titrations, where it serves as a visual marker for pH changes, transitioning from yellow in acidic solutions to blue in alkaline environments. Its unique properties make it an essential tool for chemists and researchers in fields such as biochemistry, environmental science, and education. The 0.1% solution in approximately 50% ethanol enhances its solubility and stability, making it suitable for precise analytical work.

In addition to its role in titrations, Bromothymol blue is employed in microbiological studies to assess the pH of culture media, aiding in the identification of bacterial growth patterns. Its ability to indicate pH changes in real-time allows for accurate monitoring in various experimental setups. With its reliable performance and ease of use, Bromothymol blue remains a preferred choice for professionals seeking a dependable pH indicator in their research and applications.

Synonyms
3',3''-Dibromothymolsulfonaphthalein
CAS Number
76-59-5
Molecular Formula
C27H28Br2O5S
Molecular Weight
624.4
MDL Number
MFCD00005872
PubChem ID
6450
Appearance
Yellow to brown liquid
Conditions
Store at RT
General Information
Synonyms
3',3''-Dibromothymolsulfonaphthalein
CAS Number
76-59-5
Molecular Formula
C27H28Br2O5S
Molecular Weight
624.4
MDL Number
MFCD00005872
PubChem ID
6450
Appearance
Yellow to brown liquid
Conditions
Store at RT
Properties
Additional property information coming soon!
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Safety and Regulations
Hazmat
No
Antibiotic
No
DEA-regulated
No
Warnings
-
Applications

Bromothymol blue (0.1% in ca. 50% ethanol) is widely utilized in research focused on:

  • pH Indicator: Commonly used in laboratories to determine the acidity or alkalinity of solutions. Its color change from yellow to blue at a pH range of 6.0 to 7.6 makes it an excellent choice for titrations and other analytical procedures.
  • Biological Research: Employed in cell culture and microbiology to monitor pH changes in growth media, helping researchers understand cellular metabolism and growth conditions.
  • Educational Purposes: Frequently used in chemistry education to demonstrate acid-base reactions, providing a visual representation that enhances student understanding of chemical principles.
  • Environmental Testing: Utilized in assessing water quality, particularly in aquatic ecosystems, where pH levels are critical for the health of aquatic life.
  • Pharmaceutical Applications: Acts as a pH stabilizer in formulations, ensuring the efficacy and stability of active ingredients in various medicinal products.

Citations