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Catalog Number:
22782
CAS Number:
493-52-7
Methyl Red free acid
Purity:
≥ 96% (Dye content)
Synonym(s):
4-Dimethylaminoazobenzene-2'-carboxylic acid, CI 13020
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$18.50 /25G
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Product Information

Methyl Red free acid is a versatile azo dye widely recognized for its application as a pH indicator in various chemical and biological processes. This compound exhibits a distinct color change from red to yellow at a pH range of 4.4 to 6.2, making it an invaluable tool in titrations and other analytical methods. Its ability to provide clear visual cues allows researchers and industry professionals to monitor pH levels effectively, ensuring precise control in laboratory experiments and industrial applications.

In addition to its role as a pH indicator, Methyl Red free acid is utilized in the textile and food industries for dyeing and coloring purposes. Its stability and vibrant coloration make it suitable for use in a variety of products, from food additives to laboratory reagents. Methyl Red free acid is also employed in microbiological assays, where it helps differentiate between various bacterial species based on their metabolic activity. With its unique properties and broad applicability, Methyl Red free acid stands out as a reliable choice for professionals seeking quality and performance in their chemical applications.

Synonyms
4-Dimethylaminoazobenzene-2'-carboxylic acid, CI 13020
CAS Number
493-52-7
Purity
≥ 96% (Dye content)
Molecular Formula
C15H15N3O2
Molecular Weight
269.3
MDL Number
MFCD00002425
PubChem ID
10303
Melting Point
177 - 184 °C (Lit.)
Appearance
Dark red or dark purple powder
Conditions
Store at RT
General Information
Synonyms
4-Dimethylaminoazobenzene-2'-carboxylic acid, CI 13020
CAS Number
493-52-7
Purity
≥ 96% (Dye content)
Molecular Formula
C15H15N3O2
Molecular Weight
269.3
MDL Number
MFCD00002425
PubChem ID
10303
Melting Point
177 - 184 °C (Lit.)
Appearance
Dark red or dark purple powder
Conditions
Store at RT
Properties
Additional property information coming soon!
-
Safety and Regulations
Hazmat
No
Antibiotic
No
DEA-regulated
No
Warnings
-
Applications

Methyl Red free acid is widely utilized in research focused on:

  • pH Indicator: Commonly used in titrations, it changes color at a pH range of 4.4 to 6.2, making it ideal for determining the acidity of solutions in laboratories.
  • Biological Research: Employed as a staining agent in microbiology to differentiate between various types of bacteria based on their metabolic activity.
  • Textile Industry: Utilized as a dye for fabrics, providing vibrant colors while being less toxic compared to some other synthetic dyes, thus promoting safer manufacturing processes.
  • Food Industry: Used as a food coloring agent in certain products, offering a visually appealing option while adhering to regulatory standards for safety.
  • Environmental Testing: Applied in assessing the acidity of soil and water samples, helping researchers monitor environmental health and compliance with regulations.

Documents

Safety Data Sheets (SDS)

The SDS provides comprehensive safety information on handling, storage, and disposal of the product.

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Safety Data Sheets (SDS)

The SDS provides comprehensive safety information on handling, storage, and disposal of the product.

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Product Specification (PS)

The PS provides a comprehensive breakdown of the product’s properties, including chemical composition, physical state, purity, and storage requirements. It also details acceptable quality ranges and the product's intended applications.

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Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

*Catalog Number
The Catalog Number is a five-digit number located on the product label near the product name, and also in your order confirmation email. Exclude any hyphens or size information. Ex. 01578
*Lot Number
The Lot Number is a multi-digit number that can be found on the product label or invoice. Ex. 12345-12345
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Certificates Of Origin (COO)

This COO confirms the country where the product was manufactured, and also details the materials and components used in it and whether it is derived from natural, synthetic, or other specific sources. This certificate may be required for customs, trade, and regulatory compliance.

*Catalog Number
The Catalog Number is a five-digit number located on the product label near the product name, and also in your order confirmation email. Exclude any hyphens or size information. Ex. 01578
*Lot Number
The Lot Number is a multi-digit number that can be found on the product label or invoice. Ex. 12345-12345
Document not found.
Not finding what you are looking for?
Sample COO Request COO
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