Description

Trisodium 4-hydroxy-5-[[4-(methylamino)-6-[[3-[(2,5,6-trichloro-4-pyrimidinyl)amino]phenyl]amino]-1,3,5-triazin-2-yl]amino]-3-[(2-sulphonatophenyl)azo]naphthalene-2,7-disulphonate is a high-performance, water-soluble reactive dye intermediate of significant industrial importance. Its complex molecular structure, featuring a triazine linker and multiple sulphonate groups, is engineered to deliver exceptional color fastness and covalent bonding properties to cellulosic fibers. This compound is essential for manufacturers requiring vibrant, durable, and wash-resistant dyes for textiles and specialty papers. Its primary value lies in enabling the production of advanced reactive dyes with superior application performance.

Application

• Primary Intermediate for Reactive Dyes: Key building block in the synthesis of high-grade reactive dyes for cotton, viscose, and other cellulosic fibers.
• Textile Dyeing and Printing: Used to produce dyes that offer excellent wash, light, and perspiration fastness in textile manufacturing.
• Paper Coloring: Employed in the production of dyes for specialty papers requiring high color strength and stability.
• Leather Dyeing: Suitable for formulating dyes used in the leather industry for uniform and deep coloration.
• Ink Formulation: A component in the manufacture of inks for applications demanding specific chromatic properties and durability.
• Research & Development: Serves as a critical reference standard and starting material in chemical R&D for novel colorants.

Basic Information

Product Name	Trisodium 4-hydroxy-5-[[4-(methylamino)-6-[[3-[(2,5,6-trichloro-4-pyrimidinyl)amino]phenyl]amino]-1,3,5-triazin-2-yl]amino]-3-[(2-sulphonatophenyl)azo]naphthalene-2,7-disulphonate
CAS No.	72139-15-2
Molecular Formula	C31H20Cl3N11Na3O11S3
Molecular Weight	~1010.26 g/mol (as trisodium salt)
Synonyms	Reactive Dye Intermediate 72139-15-2; Triazine-based Azo Dye Intermediate; C.I. Reactive Red 198 Intermediate; Trisodium salt of a chlorotriazinyl reactive dye; 5-[[4-(Methylamino)-6-[[3-[(2,5,6-trichloro-4-pyrimidinyl)amino]phenyl]amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(2-sulfophenyl)azo]naphthalene-2,7-disulfonic acid trisodium salt; Azo-triazine-pyrimidine dye intermediate; Textile dye precursor CAS 72139-15-2
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Quality is verified through comprehensive analytical testing including HPLC for purity, spectrophotometry for color strength, and elemental analysis. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting key parameters such as assay, impurity profile, and solubility. We support compliance with relevant industry and supply chain standards.

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). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Water Content (KF)	Max. 5.0%
Solubility (in Water)	Freely soluble
Heavy Metals (as Pb)	Max. 20 ppm
Related Substances (HPLC)	Total impurities: Max. 3.0%

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