Description

Disodium 3-Methyl-5-[[4-[(4-Sulphonatophenyl)Azo]Phenyl]Azo]Salicylate is a high-purity, water-soluble azo dye intermediate and analytical reagent. This compound is valued for its consistent chromophore structure and reliable performance in demanding industrial and laboratory applications. It is primarily utilized by manufacturers in the dye and pigment industry, as well as by research and quality control laboratories requiring precise colorimetric standards.

Application

• Dye and Pigment Intermediate: A key precursor for synthesizing specific azo dyes and pigments, particularly for textile, ink, and coating applications.
• Analytical Chemistry Reagent: Used as a colorimetric reagent or standard in analytical methods for the detection and quantification of various metal ions or other analytes.
• Biological Staining: Potential application as a histological or cytological stain in life science research due to its specific binding properties.
• Photographic Industry: Can be employed in the formulation of light-sensitive layers or color couplers in specialized photographic materials.
• Indicator Synthesis: Serves as a starting material for the production of pH indicators or other chemical sensors.
• Research & Development: Used in chemical R&D for studying azo coupling reactions, dye properties, and material science applications.

Basic Information

Product Name	Disodium 3-Methyl-5-[[4-[(4-Sulphonatophenyl)Azo]Phenyl]Azo]Salicylate
CAS No.	6406-37-7
Molecular Formula	C20H14N4Na2O7S
Molecular Weight	492.39 g/mol
Synonyms	Disodium 3-Methyl-5-[(4-[(4-Sulfophenyl)azo]phenyl)azo]salicylate; Acid Orange 74; C.I. 18745; 3-Methyl-5-[[4-[(4-sulfophenyl)azo]phenyl]azo]salicylic Acid Disodium Salt; Mordant Orange 74; Salicylic Acid, 3-Methyl-5-[[4-[(4-sulfophenyl)azo]phenyl]azo]-, Disodium Salt; Azo Dye Intermediate 6406-37-7
EINECS	Contact for details

Quality Control

Our Disodium 3-Methyl-5-[[4-[(4-Sulphonatophenyl)Azo]Phenyl]Azo]Salicylate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting key parameters such as assay, impurity profile, and physical characteristics to meet your technical specifications.

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). This material is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 1.0%

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