Description

Trisodium 2-[[4-[[4-[(4-Chloro-6-Phenyl-1,3,5-Triazin-2-Yl)Amino]-7-Sulphonato-1-Naphthyl]Azo]-2,5-Dimethylphenyl]Azo]Benzene-1,4-Disulphonate is a high-purity, water-soluble anionic dye belonging to the class of reactive and direct dyes, known for its excellent color strength and substantivity. This compound is engineered to deliver superior wash and light fastness, making it a critical component for achieving durable and vibrant coloration in demanding applications. It is primarily sought after by manufacturers in the textile, leather, and specialty paper industries who require consistent, high-performance colorants for their production processes.

Application

• Textile Dyeing: Primary application for dyeing cotton, viscose, and other cellulosic fibers, offering excellent exhaustion and fixation properties.
• Leather Finishing: Used for coloring leather goods, providing rich, uniform shades with good penetration.
• Paper Coloring: Employed in the production of specialty papers, including decorative and packaging papers, for intense coloration.
• Ink Formulation: A key pigment component in the manufacture of inks for various printing applications.
• Biological Staining: Potential use as a histological stain in laboratory settings due to its specific chromogenic properties.
• Research & Development: Serves as a chemical intermediate or reference standard in synthetic organic chemistry and dye research.

Basic Information

Product Name	Trisodium 2-[[4-[[4-[(4-Chloro-6-Phenyl-1,3,5-Triazin-2-Yl)Amino]-7-Sulphonato-1-Naphthyl]Azo]-2,5-Dimethylphenyl]Azo]Benzene-1,4-Disulphonate
CAS No.	66261-70-9
Molecular Formula	C39H24ClN9Na3O12S3
Molecular Weight	1044.28 g/mol
Synonyms	Reactive Red 141; C.I. Reactive Red 141; Trisodium 4-[(4-[(4-chloro-6-phenyl-1,3,5-triazin-2-yl)amino]-7-sulphonato-1-naphthyl)azo]-2,5-dimethyl-4'-[(4-sulphonatophenyl)azo]azobenzene; 2-Naphthalenesulfonic acid, 4-[[4-[(4-chloro-6-phenyl-1,3,5-triazin-2-yl)amino]-7-sulfo-1-naphthalenyl]azo]-2,5-dimethyl-4'-[(4-sulfophenyl)azo]azobenzene, trisodium salt; Reactive Red KE-3B; Levafix Red E-4BA; Procion Red H-E3B
EINECS	266-290-1

Quality Control

Every batch of our dye is produced under a strict quality management system and undergoes comprehensive analytical testing to ensure it meets precise specifications for color value, strength, and purity. We provide a detailed Certificate of Analysis (COA) with each shipment, documenting key parameters such as assay, shade, solubility, and impurity profile. Our quality commitment aligns with industry best practices to guarantee batch-to-batch consistency and performance reliability for your formulations.

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 nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product performance and flow characteristics. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility	Clear solution at 1%
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.