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Catalog Number:
01583
CAS Number:
115-40-2
Bromocresol purple
Grade:
ACS reagent
Purity:
≥ 95% (Dye Content)
Synonym(s):
5',5''-Dibromo-2-cresolsulfonephthalein
Documents
$35.00 /25G
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Product Information

Bromocresol purple is a versatile pH indicator widely used in various laboratory and industrial applications. This compound exhibits a distinct color change from yellow to purple as the pH transitions from acidic to neutral, making it an essential tool for researchers in fields such as biochemistry and microbiology. Its sensitivity and reliability allow for precise monitoring of pH levels in solutions, which is crucial for experiments that require strict pH control. Additionally, Bromocresol purple is utilized in the formulation of culture media, where it aids in the identification of microorganisms by indicating metabolic activity through color changes.

In the pharmaceutical industry, Bromocresol purple serves as a valuable component in the development of diagnostic tests and assays. Its unique properties enable it to act as a stabilizing agent in various formulations, enhancing the efficacy and shelf-life of products. Furthermore, its application extends to educational settings, where it is used in teaching laboratories to demonstrate acid-base reactions. With its broad range of uses and reliable performance, Bromocresol purple is an indispensable resource for professionals seeking accurate pH measurement and analysis.

Synonyms
5',5''-Dibromo-2-cresolsulfonephthalein
CAS Number
115-40-2
Purity
≥ 95% (Dye Content)
Grade
ACS reagent
Molecular Formula
C21H16Br2O5S
Molecular Weight
540.24
MDL Number
MFCD00011681
PubChem ID
8273
Melting Point
241 - 242 ºC
Appearance
Grey to light purple or pink to yellow tan powder
Conditions
Store at RT
General Information
Synonyms
5',5''-Dibromo-2-cresolsulfonephthalein
CAS Number
115-40-2
Purity
≥ 95% (Dye Content)
Grade
ACS reagent
Molecular Formula
C21H16Br2O5S
Molecular Weight
540.24
MDL Number
MFCD00011681
PubChem ID
8273
Melting Point
241 - 242 ºC
Appearance
Grey to light purple or pink to yellow tan powder
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

Bromocresol purple is widely utilized in research focused on:

  • pH Indicator: This compound is commonly used in laboratories as a pH indicator due to its clear color change in the pH range of 5.2 to 6.8, making it ideal for titrations and other acid-base reactions.
  • Biological Research: It serves as a vital tool in microbiology for determining the pH of culture media, helping researchers assess the growth conditions of various microorganisms.
  • Clinical Diagnostics: In medical laboratories, bromocresol purple is used in the determination of serum albumin levels, which is crucial for diagnosing liver and kidney diseases.
  • Food Industry: The compound finds applications in food testing, particularly in assessing acidity levels in various products, ensuring quality control and compliance with safety standards.
  • Environmental Monitoring: It is employed in environmental studies to monitor pH levels in water bodies, aiding in the assessment of ecological health and pollution levels.

Citations