Description

Trisodium 5-[[4-Chloro-6-(Methylphenylamino)-1,3,5-Triazin-2-Yl]Amino]-4-Hydroxy-3-[(4-Methoxy-2-Sulphonatophenyl)Azo]Naphthalene-2,7-Disulphonate is a high-purity, water-soluble reactive dye intermediate of significant commercial importance. This compound is valued for its role in synthesizing vibrant and wash-fast dyes, particularly for cellulosic fibers like cotton. It is a critical raw material for manufacturers in the textile, ink, and specialty colorant industries seeking to produce high-performance coloring agents. Its specific structure allows for the creation of dyes with excellent stability and color properties.

Application

This specialized chemical intermediate serves as a key building block in the production of advanced colorants. Its primary and derived applications include:

• Primary use as a reactive dye intermediate for the textile industry, specifically in the manufacturing of dyes for cotton, viscose, and other cellulosic fibers.
• Production of high-performance inks for digital textile printing and other specialized printing applications requiring color fastness.
• Synthesis of specialty pigments and colorants used in coatings, plastics, and paper where specific hue and stability are required.
• Utilization in research and development laboratories for creating novel chromophores and studying azo-triazine chemistry.
• Potential use in the formulation of biological stains for microscopy, given its complex, light-absorbing structure.

Basic Information

Product Name	Trisodium 5-[[4-Chloro-6-(Methylphenylamino)-1,3,5-Triazin-2-Yl]Amino]-4-Hydroxy-3-[(4-Methoxy-2-Sulphonatophenyl)Azo]Naphthalene-2,7-Disulphonate
CAS No.	85631-77-2
Molecular Formula	C33H23ClN7Na3O13S3
Molecular Weight	934.18 g/mol
Synonyms	Reactive Red 198 (Parent Dye); Trisodium 4-hydroxy-3-[[4-methoxy-2-sulfophenyl)azo]-5-[[4-chloro-6-[(4-methylphenyl)amino]-1,3,5-triazin-2-yl]amino]-2,7-naphthalenedisulfonate; C.I. Reactive Red 198; Reactive Red 198 sodium salt; 5-[[4-Chloro-6-(p-tolylamino)-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(4-methoxy-2-sulfophenyl)azo]naphthalene-2,7-disulfonic acid trisodium salt; C.I. 18221; Reactive Red 198 intermediate.
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 purity. Quality is verified through advanced analytical techniques including HPLC, UV-Vis spectroscopy, and titration methods. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment. We support compliance with global regulatory frameworks such as REACH.

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.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content (KF)	≤ 5.0%
Water Solubility	Freely soluble
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.