Description

Trisodium 2-Chloro-5-[[4,5-Dihydro-3-Methyl-5-Oxo-1-[4-[[2-(Sulphonatooxy)Ethyl]Sulphonyl]Phenyl]-1H-Pyrazol-4-Yl]Azo]-4-Sulphonatobenzoate is a high-purity, water-soluble anionic dye intermediate characterized by its complex, multi-sulphonated structure. This compound is essential for synthesizing high-performance reactive and direct dyes, offering excellent color strength and stability in demanding applications. It is a critical raw material for manufacturers in the textile, ink, and specialty coatings industries who require consistent quality and reliable supply chains for their production processes.

Application

• Primary Intermediate for Reactive Dyes: Used in the synthesis of high-quality reactive dyes for cotton, viscose, and other cellulosic fibers, providing brilliant shades and excellent wash-fastness.
• Manufacture of Direct Dyes: Serves as a key component in producing direct dyes for paper coloring and textile applications where high substantivity is required.
• Specialty Ink Formulations: Employed in the production of inks for jet printing and other specialty applications demanding high solubility and color purity.
• Functional Dye Synthesis: Acts as a precursor for creating functional dyes used in optical applications, sensors, or as biological stains.
• Research & Development: Utilized in chemical R&D laboratories for developing novel chromophores and studying azo dye chemistry and properties.

Basic Information

Product Name	Trisodium 2-Chloro-5-[[4,5-Dihydro-3-Methyl-5-Oxo-1-[4-[[2-(Sulphonatooxy)Ethyl]Sulphonyl]Phenyl]-1H-Pyrazol-4-Yl]Azo]-4-Sulphonatobenzoate
CAS No.	12769-09-4
Molecular Formula	C19H12ClN3Na3O13S3
Molecular Weight	731.90 g/mol (as trisodium salt)
Synonyms	Reactive Red 198 (Free Acid); C.I. Reactive Red 198; 2-Chloro-5-[[4,5-dihydro-3-methyl-5-oxo-1-[4-[(2-sulfooxyethyl)sulfonyl]phenyl]-1H-pyrazol-4-yl]azo]-4-sulfobenzoic Acid Trisodium Salt; Trisodium 5-[(4,5-Dihydro-3-methyl-5-oxo-1-(4-((2-sulfonatooxyethyl)sulfonyl)phenyl)-1H-pyrazol-4-yl)azo]-2-chloro-4-sulfobenzoate; Benzoic acid, 2-chloro-5-[[4,5-dihydro-3-methyl-5-oxo-1-[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]-1H-pyrazol-4-yl]azo]-4-sulfo-, trisodium salt
EINECS	Contact for details

Quality Control

Our production of Trisodium 2-Chloro-5-[[4,5-Dihydro-3-Methyl-5-Oxo-1-[4-[[2-(Sulphonatooxy)Ethyl]Sulphonyl]Phenyl]-1H-Pyrazol-4-Yl]Azo]-4-Sulphonatobenzoate adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. The material is manufactured under a cGMP-compliant quality system and is supported by a comprehensive Certificate of Analysis (COA) for each lot, detailing key parameters such as assay, impurity profile, and physical properties. We are committed to meeting the specific quality standards required by our global customers in the dye and pigment industries.

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 nature, the container must be kept tightly sealed after each use to prevent moisture absorption, which can affect product performance and handling. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Solubility (in Water)	Clear solution
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.