Description

5-[(4-Aminophenyl)Azo]-3-Methylsalicylic Acid is an azo dye intermediate and analytical reagent of significant commercial importance. Its value lies in its role as a versatile precursor for synthesizing a range of specialized dyes, pigments, and colorants. This compound is primarily needed by manufacturers in the dye and pigment, chemical synthesis, and research and development sectors.

Application

• Dye and Pigment Intermediate: A key precursor for the synthesis of acid dyes, direct dyes, and other azo-based colorants used in textiles, leather, and paper.
• Analytical Chemistry Reagent: Utilized as a chromogenic agent or complexing agent in spectrophotometric analysis and other laboratory testing procedures.
• Chemical Synthesis Building Block: Serves as a versatile intermediate for creating more complex organic molecules in pharmaceutical and specialty chemical research.
• Research & Development: Employed in academic and industrial R&D for studying azo compound chemistry, photochemical properties, and material science applications.
• Specialty Colorant Production: Used in the manufacture of specialized pigments for inks, coatings, and plastics where specific color fastness or chemical properties are required.

Basic Information

Product Name	5-[(4-Aminophenyl)Azo]-3-Methylsalicylic Acid
CAS No.	65072-59-5
Molecular Formula	C14H13N3O3
Molecular Weight	271.27 g/mol
Synonyms	3-Methyl-5-[(4-aminophenyl)azo]salicylic acid; 5-[(4-Aminophenyl)diazenyl]-3-methyl-2-hydroxybenzoic acid; 4-Aminoazobenzene-2'-carboxylic-5'-methyl acid; C.I. 37120; Azoic Diazo Component 114; Fast Scarlet G Base; Azoic Diazo 114
EINECS	Contact for details

Quality Control

Our 5-[(4-Aminophenyl)Azo]-3-Methylsalicylic Acid is produced under strict quality management protocols. Every batch undergoes rigorous analytical testing to ensure high purity, consistent performance, and traceability. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Orange to red-brown powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.