Description

Sodium 3-[[3-[(3-Amino-4-Nitrophenyl)Azo]-2,4-Dihydroxyphenyl]Azo]-4-Methoxybenzenesulphonate is a high-purity, synthetic azo dye intermediate known for its specific chromophoric properties. This compound is critical for manufacturers requiring precise color development and consistent batch-to-batch performance in demanding applications. It is primarily utilized by producers of specialized dyes, pigments, and colorants for the textile, ink, and advanced materials sectors.

Application

• Primary intermediate for the synthesis of high-performance azo dyes and pigments.
• Key component in manufacturing colorants for textile fibers, including nylon, silk, and wool.
• Used in the production of specialized inks for printing and packaging applications.
• Acts as a functional intermediate in the development of analytical reagents and biological stains.
• Potential use in the research and development of advanced functional materials and sensors.
• Serves as a standard or reference material in quality control laboratories for dye analysis.

Basic Information

Product Name	Sodium 3-[[3-[(3-Amino-4-Nitrophenyl)Azo]-2,4-Dihydroxyphenyl]Azo]-4-Methoxybenzenesulphonate
CAS No.	67786-15-6
Molecular Formula	C20H14N6Na2O9S
Molecular Weight	584.41 g/mol
Synonyms	Benzenesulfonic acid, 3-[[3-[(3-amino-4-nitrophenyl)azo]-2,4-dihydroxyphenyl]azo]-4-methoxy-, disodium salt; C.I. 29215; Acid Brown 354; Sodium 3-[(3-[(3-amino-4-nitrophenyl)diazenyl]-2,4-dihydroxyphenyl)diazenyl]-4-methoxybenzenesulfonate; 4-Methoxy-3-[(3-[(3-amino-4-nitrophenyl)azo]-2,4-dihydroxyphenyl)azo]benzenesulfonic acid sodium salt
EINECS	Contact for details

Quality Control

Our Sodium 3-[[3-[(3-Amino-4-Nitrophenyl)Azo]-2,4-Dihydroxyphenyl]Azo]-4-Methoxybenzenesulphonate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and performance. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical characteristics is provided with each shipment to guarantee traceability and compliance.

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 (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which may affect product performance and stability.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
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.