Description

Disodium 4-[5-Amino-4-[[2-Methoxy-5-[[2-(Sulphonatooxy)Ethyl]Sulphonyl]Phenyl]Azo]-3-Methyl-1H-Pyrazol-1-Yl]Benzenesulphonate is a high-purity, water-soluble anionic dye intermediate characterized by its complex azo-pyrazole structure. This compound is engineered to deliver exceptional color strength and stability in demanding industrial formulations, making it a critical component for producing vivid and durable shades. It is primarily utilized by manufacturers in the textile, ink, and specialty chemical sectors seeking reliable and consistent performance in their coloration processes.

Application

• Primary Intermediate for Reactive Dyes: Key building block in the synthesis of high-performance reactive dyes for cotton, wool, and nylon fibers.
• Textile Dyeing and Printing: Imparts bright, wash-fast colors in exhaust and continuous dyeing processes for fabrics.
• Inkjet Ink Formulation: Used in the production of colorants for industrial and commercial inkjet printing, offering good solubility and color fidelity.
• Specialty Pigment Synthesis: Serves as a precursor in the manufacture of certain high-grade organic pigments.
• Paper Coloring: Applicable in the coloration of specialty papers where anionic properties are advantageous.
• Research & Development: Employed in chemical R&D for developing new chromophores and functional dyes.

Basic Information

Item	Details
Product Name	Disodium 4-[5-Amino-4-[[2-Methoxy-5-[[2-(Sulphonatooxy)Ethyl]Sulphonyl]Phenyl]Azo]-3-Methyl-1H-Pyrazol-1-Yl]Benzenesulphonate
CAS No.	94442-04-3
Molecular Formula	C25H24N5Na2O13S3
Molecular Weight	767.62 g/mol
Synonyms	Disodium 5-amino-4-((2-methoxy-5-((2-sulfooxy)ethyl)sulfonyl)phenyl)azo)-3-methyl-1-phenyl-1H-pyrazole-4-sulfonate; Reactive Dye Intermediate; Azo Pyrazole Dye Intermediate; C.I. Reactive Orange 107 intermediate; Benzenesulfonic acid, 4-[5-amino-4-[[2-methoxy-5-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-3-methyl-1H-pyrazol-1-yl]-, disodium salt
EINECS	Contact for details

Quality Control

Every batch of our Disodium 4-[5-Amino-4-[[2-Methoxy-5-[[2-(Sulphonatooxy)Ethyl]Sulphonyl]Phenyl]Azo]-3-Methyl-1H-Pyrazol-1-Yl]Benzenesulphonate is produced under a strict quality management system. We conduct rigorous in-process and final testing to ensure chemical identity, purity, and consistency meet the high standards required for dye intermediate applications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications is provided with each shipment.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture (KF Titration)	≤ 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%

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