Description

3-[[4-[[4-(Sodiooxy)Phenyl]Azo]-3-Methoxyphenyl]Azo]Benzenesulfonic Acid Sodium Salt is a high-purity, water-soluble azo dye intermediate essential for producing vibrant and stable colorants. Its primary value lies in its dual azo chromophore structure, which provides excellent color strength and versatility for chemical synthesis. This compound is a critical raw material for manufacturers in the dye and pigment industries seeking to develop specialized colorants for textiles, inks, and specialty coatings.

Application

• Primary intermediate for the synthesis of high-performance azo dyes and pigments.
• Key component in the production of colorants for textile dyeing and printing processes.
• Used in the formulation of specialty inks, including those for packaging and security applications.
• Precursor for manufacturing colorants used in leather finishing and surface coatings.
• Employed in research and development for novel functional dyes with specific optical properties.
• Potential use in the coloration of paper products and specialty polymers.

Basic Information

Product Name	3-[[4-[[4-(Sodiooxy)Phenyl]Azo]-3-Methoxyphenyl]Azo]Benzenesulfonic Acid Sodium Salt
CAS No.	70900-44-6
Molecular Formula	C25H19N4Na2O6S
Molecular Weight	564.48 g/mol
Synonyms	Benzenesulfonic acid, 3-[[4-[[4-(sodiooxy)phenyl]azo]-3-methoxyphenyl]azo]-, sodium salt; Sodium 3-((4-((4-hydroxyphenyl)diazenyl)-3-methoxyphenyl)diazenyl)benzenesulfonate; Azo dye intermediate 70900-44-6; Disodium 3-((4-((4-hydroxyphenyl)azo)-3-methoxyphenyl)azo)benzenesulfonate; 3-((4-((4-Hydroxyphenyl)azo)-3-methoxyphenyl)azo)benzenesulfonic acid disodium salt
EINECS	Contact for details

Quality Control

Our production of this azo intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and high chemical purity. Quality is verified through advanced analytical techniques including HPLC and spectrophotometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, 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 brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Freely soluble

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