Description

4-[4-(3-Sulfoanilino)-6-Chloro-1,3,5-Triazine-2-Ylamino]-5-Hydroxy-6-[4-[2-(Sulfooxy)Ethylsulfonyl]Phenylazo]-2,7-Naphthalenedisulfonic Acid CAS NO 72987-39-4 is a high-purity, reactive dye intermediate characterized by its complex poly-sulfonated and azo-triazine structure. This compound is engineered to deliver exceptional color strength, wash-fastness, and chemical stability in demanding dyeing processes. It is an essential building block for manufacturers of high-performance reactive dyes targeting textiles, leather, and specialty inks.

Application

• Primary Intermediate for Reactive Dyes: Synthesis of high-grade reactive dyes for cotton, viscose, and other cellulosic fibers.
• Textile Industry: Production of dyes offering excellent fixation, brilliant shades (particularly reds and blues), and superior fastness to washing and light.
• Leather Coloring: Manufacturing of dyes for leather with deep, uniform penetration and color retention.
• Inkjet Inks: Key component in the formulation of specialty inks requiring high color purity and stability.
• Paper Dyeing: Used in the production of dyes for high-quality, color-fast paper products.
• Research & Development: Serves as a critical reagent in chemical research for developing novel chromophores and functional dyes.

Basic Information

Product Name	4-[4-(3-Sulfoanilino)-6-Chloro-1,3,5-Triazine-2-Ylamino]-5-Hydroxy-6-[4-[2-(Sulfooxy)Ethylsulfonyl]Phenylazo]-2,7-Naphthalenedisulfonic Acid
CAS No.	72987-39-4
Molecular Formula	C27H20ClN7O16S4
Molecular Weight	882.19 g/mol
Synonyms	Reactive Red 195; C.I. Reactive Red 195; Reactive Red 195 dye intermediate; 4-[4-[(3-Sulfophenyl)amino]-6-chloro-1,3,5-triazin-2-yl]amino]-5-hydroxy-6-[[4-[(2-sulfooxy)ethyl]sulfonyl]phenyl]azo]-2,7-naphthalenedisulfonic acid; 1,3,5-Triazine-2,4-diamine, 6-chloro-N-[3-sulfophenyl]-N'-[7-[[4-[(2-sulfooxy)ethyl]sulfonyl]phenyl]azo]-8-hydroxy-3,6-disulfo-2-naphthalenyl]-; Reactive Red M-3BE; Levafix Red CA; Sumifix Red 3BF
EINECS	Contact for details

Quality Control

Our production of this reactive dye intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and purity. Every lot is analyzed using advanced techniques like HPLC and spectrophotometry to confirm identity and strength. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications is provided with each shipment to support your quality assurance protocols.

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). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark red to brown powder or granules
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility	Freely soluble
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm

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