Description

Trisodium 5-[[4-chloro-6-[[3-[[1-(2,5-dichloro-4-sulphonatophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-4-sulphonatophenyl]amino]-1,3,5-triazin-2-yl]amino]naphthalene-2-sulphonate is a high-purity, water-soluble anionic dye intermediate characterized by its complex heterocyclic structure. This compound is engineered for exceptional color strength and binding affinity, making it a critical component in the synthesis of high-performance dyes and pigments. It is primarily utilized by manufacturers in the textile, ink, and specialty coatings industries seeking to produce vivid, wash-fast colors.

Application

• Primary Intermediate for Reactive Dyes: Key building block in the synthesis of high-quality reactive dyes for cotton, wool, and nylon fibers, ensuring excellent wash and light fastness.
• Specialty Ink Formulations: Used in the production of pigments for inks in digital textile printing and high-resolution inkjet applications.
• Industrial Coatings and Paints: Imparts durable coloration to industrial coatings where chemical resistance and color stability are paramount.
• Paper Coloring Agent: Employed in the manufacture of specialty colored papers and boards.
• Research & Development: Serves as a precise chemical reagent in academic and industrial R&D for developing new chromophores and functional dyes.

Basic Information

Item	Details
Product Name	Trisodium 5-[[4-chloro-6-[[3-[[1-(2,5-dichloro-4-sulphonatophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-4-sulphonatophenyl]amino]-1,3,5-triazin-2-yl]amino]naphthalene-2-sulphonate
CAS No.	85750-16-9
Molecular Formula	C30H17Cl3N9Na3O11S3
Molecular Weight	Approx. 959.02 g/mol
Synonyms	Reactive Black 5 intermediate; Trisodium 1-amino-4-[[4-[(2,5-dichloro-4-sulfophenyl)azo]-5-methyl-2-sulfophenyl]azo]-6-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]naphthalene-2-sulfonate; C.I. Reactive Black 5 precursor; Azo triazine dye intermediate; 85750-16-9; 5-[[4-Chloro-6-[[3-[[1-(2,5-dichloro-4-sulfonatophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-4-sulfonatophenyl]amino]-1,3,5-triazin-2-yl]amino]naphthalene-2-sulfonic acid trisodium salt
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise compositional specifications. A Certificate of Analysis (COA) detailing batch-specific results is provided with each shipment to guarantee traceability and compliance with your internal quality standards.

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 to prevent moisture absorption, which can affect product stability and handling properties. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark blue to black powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Completely soluble
Heavy Metals (as Pb)	≤ 20 ppm

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