Description

4-Acetamido-5-[[4-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]Anthranilic Acid, Sodium Salt is a high-purity, water-soluble azo dye intermediate of significant industrial importance. Its molecular structure, featuring reactive sulphooxy and sulphonyl groups, makes it a versatile precursor for synthesizing specialized dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty chemical industries seeking to produce vivid and stable colorants with enhanced application properties.

Application

This specialized azo intermediate is designed for high-value applications where color performance and chemical reactivity are critical. Its primary and derived uses include:

• Reactive Dye Synthesis: A key building block for manufacturing high-quality reactive dyes used in textile dyeing and printing, particularly for cotton and other cellulose fibers.
• Specialty Pigment Production: Used in the synthesis of organic pigments for inks, coatings, and plastics that require excellent color strength and stability.
• Biomedical Staining: Potential application as a precursor or direct agent in histological stains and diagnostic reagents due to its chromophoric structure.
• Research & Development: Serves as a critical intermediate in chemical research for developing new chromophores, sensors, and functional materials.
• Analytical Chemistry: Can be utilized as a standard or reagent in chromatographic and spectroscopic methods for dye analysis.

Basic Information

Product Name	4-Acetamido-5-[[4-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]Anthranilic Acid, Sodium Salt
CAS No.	94158-82-4
Molecular Formula	C23H19N4O9S2Na
Molecular Weight	582.53 g/mol
Synonyms	Acid Red 337 (Sodium Salt); C.I. 17915; 5-Acetamido-2-[[4-[(2-sulfooxyethyl)sulfonyl]phenyl]azo]benzoic Acid, Sodium Salt; Benzoic acid, 5-(acetylamino)-2-[[4-[(2-sulfonatooxyethyl)sulfonyl]phenyl]azo]-, sodium salt; Reactive Red Dye Intermediate; 4-Acetamidoanthranilic Acid Azo Derivative; Sodium 5-acetamido-2-[4-[(2-sulfonatooxyethyl)sulfonyl]phenyl]azobenzoate
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. Every lot is analyzed using advanced techniques including HPLC, FT-IR, and elemental analysis to verify identity, potency, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment, ensuring full traceability and compliance with your internal quality standards.

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 (moisture-sensitive) nature, the container must be kept sealed and protected from humidity. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (1% in Water)	Complete, clear solution
pH (1% Aqueous Solution)	6.0 - 8.0

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