Description

Trisodium 2,5-dichloro-4-[(4Z)-4-[[5-[[4-chloro-6-[(4-sulfonatophenyl) amino]-1,3,5-triazin-2-yl]amino]-2-sulfonato-phenyl]hydrazinylidene]-3 -methyl-5-oxo-pyrazol-1-yl]benzenesulfonate is a high-purity, water-soluble reactive dye intermediate of significant commercial importance. Its complex molecular structure, featuring multiple sulfonate groups and a reactive triazine moiety, makes it a critical precursor for synthesizing high-performance dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty chemical industries seeking to produce vivid, wash-fast colors. Its consistent quality ensures reliable batch-to-batch performance in demanding industrial applications.

Application

• Reactive Dye Synthesis: Primary intermediate for manufacturing high-grade reactive dyes used in cotton, wool, and nylon textile dyeing and printing.
• Inkjet Ink Formulation: Key component in the production of pigments for professional and industrial inkjet inks, providing excellent color strength and stability.
• Functional Dye Production: Used in the synthesis of dyes for specialized applications, including optical data storage, liquid crystal displays (LCDs), and laser dyes.
• Paper Coloring: Intermediate for dyes applied in high-quality paper and packaging materials requiring specific colorfastness properties.
• Leather Finishing: Employed in the manufacture of dyes for the leather industry, offering deep penetration and uniform coloring.
• Research & Development: Serves as a valuable building block in organic synthesis and material science research for novel chromophoric systems.

Basic Information

Product Name	Trisodium 2,5-dichloro-4-[(4Z)-4-[[5-[[4-chloro-6-[(4-sulfonatophenyl) amino]-1,3,5-triazin-2-yl]amino]-2-sulfonato-phenyl]hydrazinylidene]-3 -methyl-5-oxo-pyrazol-1-yl]benzenesulfonate
CAS No.	97162-20-4
Molecular Formula	C29H16Cl3N9Na3O12S3
Molecular Weight	Approx. 970.0 g/mol
Synonyms	Reactive Black 5 Intermediate; Trisodium 4-Amino-5-hydroxy-3-[[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-6-(phenylamino)-2,7-naphthalenedisulfonate (related isomer); C.I. Reactive Black 5 precursor; Polyazo dye intermediate; Reactive dye intermediate 97162-20-4; Tetrasodium (alternate salt form); 1,3,5-Triazine-2,4-diamine derivative; Benzenesulfonic acid derivative, trisodium salt.
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 high chemical purity. Quality is verified through advanced analytical techniques including HPLC, UV-Vis spectroscopy, and elemental analysis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment. Our quality management system is designed to meet the exacting standards of global chemical and textile manufacturers.

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 (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Dark blue to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear solution

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