Description

3-Methyl-5-[(4-Sulphophenyl)Azo]Salicylic Acid, Sodium Salt is a synthetic azo dye intermediate and analytical reagent known for its distinct chromophoric properties. This compound is valued for its role in producing colorants and as a chelating agent in various chemical processes. It is primarily utilized by manufacturers in the dye and pigment, analytical chemistry, and specialty chemical synthesis industries.

Application

• Key intermediate in the synthesis of azo dyes and pigments for textiles, inks, and coatings.
• Used as a colorimetric reagent and chelating agent in analytical chemistry for metal ion detection.
• Potential component in the formulation of specialty chemical indicators and pH sensors.
• Employed in research and development for novel functional dyes with specific light-absorption characteristics.
• May serve as a starting material for photographic chemicals and light-sensitive materials.
• Used in laboratory settings for teaching and experimental purposes involving azo chemistry.

Basic Information

Product Name	3-Methyl-5-[(4-Sulphophenyl)Azo]Salicylic Acid, Sodium Salt
CAS No.	94159-93-0
Molecular Formula	C14H11N2NaO5S
Molecular Weight	342.30 g/mol
Synonyms	5-[(4-Sulfophenyl)azo]-3-methylsalicylic acid sodium salt; Sodium 3-methyl-5-[(4-sulfophenyl)azo]salicylate; 3-Methyl-5-(p-sulfophenylazo)salicylic acid sodium salt; Azo dye intermediate Yellow; Acid Yellow dye intermediate; Salicylic acid, 3-methyl-5-[(4-sulfophenyl)azo]-, sodium salt; CI 14870 (related); Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Quality is assured through analytical methods including HPLC, UV-Vis, and titration. Certificates of Analysis (COA) documenting purity, identity, and impurity profiles are available upon request. We adhere to a cGMP-compliant quality management system to ensure batch-to-batch consistency for industrial and laboratory use.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm
Sulfated Ash	Contact for details

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