Description

2',4'-Dihydroxy-5'-(2-Methoxy-5-Sodiooxysulfonylphenylazo)-4-Nitroazobenzene-2-Sulfonic Acid Sodium Salt is a high-purity, synthetic azo dye intermediate of significant commercial importance. This compound is valued for its ability to impart specific, vibrant color properties in advanced applications, offering excellent chromophore stability. It is primarily sought by manufacturers in the textile, specialty ink, and advanced materials sectors who require precise and reliable colorant precursors for high-performance products.

Application

• Textile Dyeing: A key intermediate for synthesizing high-grade, wash-fast azo dyes for natural and synthetic fibers.
• Specialty Inks: Used in the production of colorants for high-resolution inkjet, security, and packaging inks.
• Functional Materials: Serves as a precursor in the development of colorants for liquid crystal displays (LCDs) and other optoelectronic devices.
• Research & Development: Employed as a standard or reagent in chemical research for developing new chromophores and studying dye chemistry.
• Pigment Manufacturing: Acts as a crucial component in the synthesis of organic pigments for plastics and coatings.
• Analytical Chemistry: Can be utilized as a colorimetric reagent or indicator in specific analytical methodologies.

Basic Information

Product Name	2',4'-Dihydroxy-5'-(2-Methoxy-5-Sodiooxysulfonylphenylazo)-4-Nitroazobenzene-2-Sulfonic Acid Sodium Salt
CAS No.	72906-17-3
Molecular Formula	C20H13N5Na2O11S2
Molecular Weight	625.45 g/mol
Synonyms	Acid Orange 156; C.I. 26410; 2',4'-Dihydroxy-5'-(2-methoxy-5-sulfophenylazo)-4-nitroazobenzene-2-sulfonic acid disodium salt; 4-Nitro-2',4'-dihydroxy-5'-(2-methoxy-5-sulfophenylazo)azobenzene-2-sulfonic acid sodium salt; Sodium 2',4'-dihydroxy-5'-(2-methoxy-5-sulfophenylazo)-4-nitroazobenzene-2-sulfonate; 72906-17-3; Azo dye intermediate 72906-17-3
EINECS	Contact for details

Quality Control

Our 2',4'-Dihydroxy-5'-(2-Methoxy-5-Sodiooxysulfonylphenylazo)-4-Nitroazobenzene-2-Sulfonic Acid Sodium Salt is manufactured under a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, color strength, and performance. Certificates of Analysis (COA) detailing key parameters such as assay, impurity profile, and physical specifications are provided to guarantee compliance with your technical requirements.

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 product 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%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in water)	Partially soluble

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