Description

Benzenesulfonic Acid, 2,4-Diamino-3-4-2-(Sulfooxy)Ethylsulfonylphenylazo-5-2-Sulfo-4-2-(Sulfooxy)Ethylsulfonylphenylazo-, Potassium Sodium Salt is a high-purity, water-soluble anionic dye intermediate with a complex disazo structure. This compound is engineered to deliver exceptional color strength and stability in demanding industrial applications, making it a critical component for manufacturers requiring consistent performance. It is primarily utilized by producers of specialty dyes and pigments for textiles, inks, and other colorant systems where precise hue and durability are paramount.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-performance reactive dyes for cotton and other cellulosic fibers.
• Direct Dye Manufacturing: Used in the production of direct dyes for paper, leather, and textile applications requiring good wet fastness.
• Specialty Pigment Synthesis: Serves as a precursor for creating complex organic pigments used in inks, coatings, and plastics.
• Functional Colorants: Potential use in the development of colorants for non-textile applications, such as indicators or light-absorbing materials.
• Research & Development: Employed in chemical R&D for exploring new chromophores and dye structures with enhanced properties.

Basic Information

Item	Detail
Product Name	Benzenesulfonic Acid, 2,4-Diamino-3-4-2-(Sulfooxy)Ethylsulfonylphenylazo-5-2-Sulfo-4-2-(Sulfooxy)Ethylsulfonylphenylazo-, Potassium Sodium Salt
CAS No.	187026-95-5
Molecular Formula	C22H18K2N8Na2O16S4 (or similar complex variant)
Molecular Weight	Contact for details
Synonyms	Reactive Dye Intermediate; Disazo Benzenesulfonic Acid Salt; Potassium Sodium 2,4-Diamino-5-[4-[2-(sulfooxy)ethylsulfonyl]phenylazo]-3-[4-[2-(sulfooxy)ethylsulfonyl]phenylazo]benzenesulfonate; C.I. Reactive Dye Precursor; Anionic Disazo Dye Intermediate; Textile Dye Intermediate; Water-Soluble Dye Salt; CAS 187026-95-5
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and purity. Every lot is analyzed using advanced techniques like HPLC and spectrophotometry to confirm identity, strength, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance protocols.

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 material is hygroscopic (moisture-sensitive); ensure the container is kept sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content	Max. 5.0%
Water Solubility	Completely soluble
Heavy Metals (as Pb)	Max. 20 ppm
pH (1% Solution)	6.0 - 8.0

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