Description

Benzenesulfonic Acid, 2,4-Diamino-3,5-Bis4-2-(Sulfooxy)Ethylsulfonylphenylazo-, Sodium Salt is a high-purity, water-soluble anionic dye intermediate and specialty chemical. This compound is valued for its ability to impart intense color and its compatibility with various industrial processes, making it a critical component in advanced manufacturing. It is primarily sought after by producers of dyes, pigments, and high-performance colorants for textiles, inks, and specialty coatings who require consistent quality and reliable supply chain performance.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-grade reactive dyes for cotton and other cellulosic fibers.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments for inks, plastics, and automotive coatings.
• Functional Dye Synthesis: Serves as a precursor for dyes used in laser printing, optical data storage, and other high-tech applications.
• Textile Colorants: Imparts deep, wash-fast colors in textile dyeing and printing processes.
• Laboratory & Research: Employed as a standard or research chemical in analytical chemistry and material science studies.
• Industrial Marker & Tracer Dyes: Potential use in formulating non-toxic tracer dyes for industrial fluid systems.

Basic Information

Product Name	Benzenesulfonic Acid, 2,4-Diamino-3,5-Bis4-2-(Sulfooxy)Ethylsulfonylphenylazo-, Sodium Salt
CAS No.	182926-41-6
Molecular Formula	C28H24N8Na2O14S4
Molecular Weight	902.78 g/mol
Synonyms	Reactive Black 5 Analog Intermediate; Sodium 2,4-diamino-3,5-bis[4-[2-(sulfooxy)ethylsulfonyl]phenyl]azobenzenesulfonate; Bis(2-sulfooxyethylsulfonyl) Azo Dye Intermediate; C.I. Reactive Black 5 Related Compound; 2,4-Diamino-3,5-bis(4-(2-(sulfooxy)ethylsulfonyl)phenyl)azobenzenesulfonic Acid Sodium Salt; Azo Dye Sulfonate Salt; Textile Dye Intermediate
EINECS	Contact for details

Quality Control

Our production of Benzenesulfonic Acid, 2,4-Diamino-3,5-Bis4-2-(Sulfooxy)Ethylsulfonylphenylazo-, Sodium Salt adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. Each lot is analyzed against comprehensive specifications using advanced techniques like HPLC and spectrophotometry. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory compliance 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 (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product performance and stability.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear solution

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