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Catalog Number:
32047
CAS Number:
63451-28-5
Methyl Red hydrochloride
Grade:
ACS Reagent
Synonym(s):
4-Dimethylaminoazobenzene-2'-carboxylic acid hydrochloride, Acid Red 2
Documents
$25.00 /25G
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Product Information

Methyl Red hydrochloride is a versatile pH indicator widely utilized in various laboratory and industrial applications. This compound exhibits a distinct color change from red to yellow as the pH transitions from acidic to neutral, making it an essential tool for researchers and professionals in fields such as biochemistry, microbiology, and environmental science. Its sensitivity to pH changes allows for precise monitoring in titrations and other analytical procedures, ensuring accurate results in experiments and quality control processes.

In addition to its role as a pH indicator, Methyl Red hydrochloride is also employed in the synthesis of dyes and as a biological stain, enhancing its utility in histological studies. Its unique properties make it particularly advantageous over similar compounds, as it provides clear visual cues that facilitate quick assessments of pH levels. Whether used in educational settings, research laboratories, or industrial applications, Methyl Red hydrochloride stands out as a reliable and effective choice for professionals seeking accuracy and efficiency in their work.

Synonyms
4-Dimethylaminoazobenzene-2'-carboxylic acid hydrochloride, Acid Red 2
CAS Number
63451-28-5
Grade
ACS Reagent
Molecular Formula
C15H15N3O2·HCl
Molecular Weight
305.76
MDL Number
MFCD00012614
PubChem ID
113227
Appearance
Dark purple to dark violet crystalline powder
Conditions
Store at RT
General Information
Synonyms
4-Dimethylaminoazobenzene-2'-carboxylic acid hydrochloride, Acid Red 2
CAS Number
63451-28-5
Grade
ACS Reagent
Molecular Formula
C15H15N3O2·HCl
Molecular Weight
305.76
MDL Number
MFCD00012614
PubChem ID
113227
Appearance
Dark purple to dark violet crystalline 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

Methyl Red hydrochloride is widely utilized in research focused on:

  • pH Indicator: It serves as a reliable pH indicator in titrations, changing color from red at pH 4.4 to yellow at pH 6.2, making it invaluable in laboratories for determining acidity levels.
  • Biological Studies: Researchers use it to study microbial growth and fermentation processes, as its color change can indicate metabolic activity in various organisms.
  • Analytical Chemistry: Methyl Red hydrochloride is employed in the quantitative analysis of certain compounds, providing a straightforward method for determining concentrations in samples.
  • Pharmaceutical Applications: It is used in the development of drug formulations, particularly in assessing the stability of active ingredients under different pH conditions.
  • Textile Industry: The compound is also utilized as a dye in textiles, offering vibrant colors and good fastness properties, which are essential for high-quality fabric production.

Citations