Description

Sodium 2,5-Dichloro-4-[4,5-Dihydro-3-Methyl-5-Oxo-4-[[3-[(Phenylsulphonyl)Amino]Phenyl]Azo]-1H-Pyrazol-1-Yl]Benzenesulphonate is a high-purity, water-soluble azo pyrazolone dye intermediate. This compound is valued for its role in synthesizing specialized, high-performance dyes and pigments with excellent color fastness and stability. It is primarily required by manufacturers in the textile, ink, and specialty coatings industries seeking to produce vivid and durable colors.

Application

• Primary Intermediate for Reactive Dyes: Key building block in the synthesis of reactive dyes for cotton and other cellulose fibers.
• Specialty Pigment Manufacturing: Used in the production of high-grade organic pigments for inks, plastics, and coatings.
• Textile Colorants: Imparts bright, wash-fast shades in textile dyeing and printing processes.
• Functional Dye Synthesis: Serves as a precursor for dyes used in non-textile applications, such as paper coloring or specialty markers.
• Research & Development: Utilized in chemical R&D for developing new chromophores and studying azo dye chemistry.

Basic Information

Product Name	Sodium 2,5-Dichloro-4-[4,5-Dihydro-3-Methyl-5-Oxo-4-[[3-[(Phenylsulphonyl)Amino]Phenyl]Azo]-1H-Pyrazol-1-Yl]Benzenesulphonate
CAS No.	84434-54-8
Molecular Formula	C22H16Cl2N5NaO6S2
Molecular Weight	604.41 g/mol
Synonyms	Benzenesulfonic acid, 2,5-dichloro-4-[4,5-dihydro-3-methyl-5-oxo-4-[[3-[(phenylsulfonyl)amino]phenyl]azo]-1H-pyrazol-1-yl]-, sodium salt; Sodium 2,5-dichloro-4-(4,5-dihydro-3-methyl-5-oxo-4-((3-(N-phenylsulfamoyl)phenyl)azo)-1H-pyrazol-1-yl)benzenesulfonate; Reactive Dye Intermediate; Azo Pyrazolone Dye Intermediate; C.I. Reactive Orange 107 intermediate (related); 1H-Pyrazole-1-benzenesulfonic acid derivative; Light-sensitive azo dye salt
EINECS	Contact for details

Quality Control

Our Sodium 2,5-Dichloro-4-[4,5-Dihydro-3-Methyl-5-Oxo-4-[[3-[(Phenylsulphonyl)Amino]Phenyl]Azo]-1H-Pyrazol-1-Yl]Benzenesulphonate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for dye synthesis. Certificates of Analysis (COA) detailing purity, impurity profile, and physical characteristics are 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). Keep away from heat sources and incompatible materials. Due to its light-sensitive nature, containers should be opaque or stored in dark conditions.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Solubility (in Water)	Clear solution
Heavy Metals (as Pb)	≤ 20 ppm

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