Description

Trisodium 2-[4,5-dihydro-3-methyl-4-[[4-[[4-[[2-methyl-4-[(2,5,6-trichloropyrimidin-4-yl)amino]phenyl]azo]benzoyl]amino]-2-sulphonatophenyl]azo]-5-oxo-1H-pyrazol-1-yl]benzene-1,4-disulphonate is a high-purity, water-soluble reactive dye intermediate of significant commercial importance. Its complex molecular structure, featuring multiple azo linkages, a pyrazolone ring, and sulphonate groups, is engineered to deliver exceptional color fastness and reactivity with cellulose fibers. This compound is essential for manufacturers requiring vibrant and durable shades in textiles, particularly for cotton and other natural fibers. Its design ensures strong covalent bonding with the substrate, resulting in superior wash and light fastness properties.

Application

• Primary Intermediate for Reactive Dyes: Key building block in the synthesis of high-performance reactive dyes for the textile industry.
• Cotton and Cellulose Fiber Dyeing: Used to produce brilliant and wash-fast shades on cotton, viscose, linen, and other cellulosic materials.
• Specialty Ink Formulation: A potential component in the manufacture of high-stability inks for specialized printing applications.
• Research & Development: Serves as a critical compound for R&D chemists developing new dye molecules with enhanced properties.
• Technical Dye Production: Used in creating dyes for technical applications where color stability under harsh conditions is required.

Basic Information

Item	Detail
Product Name	Trisodium 2-[4,5-dihydro-3-methyl-4-[[4-[[4-[[2-methyl-4-[(2,5,6-trichloropyrimidin-4-yl)amino]phenyl]azo]benzoyl]amino]-2-sulphonatophenyl]azo]-5-oxo-1H-pyrazol-1-yl]benzene-1,4-disulphonate
CAS No.	89923-45-5
Molecular Formula	C39H24Cl3N11Na3O14S3
Molecular Weight	Approx. 1131.2 g/mol
Synonyms	Reactive Dye Intermediate 89923-45-5; Trisodium salt of a reactive azo dye; C.I. Reactive Red 198 (related); Tetrasodium 1,3,6,8-pyrene-tetrasulfonate (structural analog); Azo pyrazolone dye intermediate; Reactive trichloropyrimidine dye intermediate; Sulfonated azo dye precursor; Textile dye intermediate CAS 89923-45-5
EINECS	Contact for details

Quality Control

Our production of this reactive dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and performance reliability. Quality is verified through advanced analytical techniques including HPLC for purity and spectrophotometry for strength assessment. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications is provided with every shipment, ensuring full transparency and compliance with your manufacturing requirements.

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 tightly sealed after use to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Clear solution at 1%
Heavy Metals (as Pb)	≤ 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.