Description

4-[4-(2-Acetylamino-4-Methoxycarbonylamino-Phenylazo)Phenylazo]-Benzenesulfonic Acid, Sodium Salt is a specialized azo dye intermediate, recognized by CAS number 182925-33-3. This high-purity compound is critical for synthesizing advanced colorants with specific chromophoric properties and enhanced solubility. It is primarily required by manufacturers in the textile, ink, and specialty polymer industries seeking to develop high-performance dyes and pigments.

Application

• As a key intermediate in the synthesis of high-grade, water-soluble azo dyes for textile fibers.
• In the production of specialized pigments and colorants for inks, including those used in digital and industrial printing.
• For research and development of novel functional dyes with applications in optical data storage or liquid crystal displays (LCDs).
• As a chromophore component in the manufacture of colored polymers and plastics requiring specific lightfastness and thermal stability.
• In analytical chemistry as a potential reagent or standard for method development and quality control in dye analysis.

Basic Information

Product Name	4-[4-(2-Acetylamino-4-Methoxycarbonylamino-Phenylazo)Phenylazo]-Benzenesulfonic Acid, Sodium Salt
CAS No.	182925-33-3
Molecular Formula	C23H20N6NaO6S
Molecular Weight	531.50 g/mol
Synonyms	Sodium 4-({4-[(2-acetamido-4-{[(methoxycarbonyl)amino]azo}phenyl)azo]phenyl}azo)benzenesulfonate; Benzenesulfonic acid, 4-[4-[(2-acetamido-4-[(methoxycarbonyl)amino]phenyl)azo]phenyl]azo]-, sodium salt; Azo dye intermediate 182925-33-3; Sodium salt of a dis-azo benzenesulfonic acid derivative; 4-({4-[(2-Acetamido-4-{[(methoxycarbonyl)amino]azo}phenyl)azo]phenyl}azo)benzenesulfonic acid sodium salt
EINECS	Contact for details

Quality Control

Our production of this azo dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and high chemical purity. Each lot is analyzed using advanced techniques like HPLC and NMR to verify identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications 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, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product performance and stability.

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
Residual Solvents (GC)	Meets ICH guidelines
Water Content (Karl Fischer)	≤ 4.0%

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