Description

Trisodium 3-[4-[[5-[(4-Amino-6-Chloro-1,3,5-Triazin-2-Yl)Amino]-2-Sulphonatophenyl]Azo]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Naphthalene-1,5-Disulphonate is a high-purity, water-soluble reactive dye intermediate, also known as a triazine-based azo compound. This chemical is critical for manufacturers requiring precise color formation and strong covalent bonding to substrates like cellulose fibers. It is primarily utilized by the textile dyeing and specialty chemical synthesis industries to produce vibrant, wash-fast colors.

Application

• Reactive Dye Synthesis: A key intermediate for manufacturing high-performance reactive dyes used in cotton, viscose, and other cellulosic fiber dyeing and printing.
• Textile Industry: Imparts excellent wet fastness, lightfastness, and brilliant shades (typically yellows to oranges) to fabrics.
• Specialty Pigments: Used in the synthesis of pigments for inks, coatings, and plastics where specific color properties are required.
• Chemical Research: Serves as a building block in organic synthesis and for developing new chromophoric systems in R&D laboratories.
• Paper Coloring: Employed in the production of dyes for specialty paper products.
• Leather Processing: Used in dye formulations for coloring leather with high fastness properties.

Basic Information

Item	Detail
Product Name	Trisodium 3-[4-[[5-[(4-Amino-6-Chloro-1,3,5-Triazin-2-Yl)Amino]-2-Sulphonatophenyl]Azo]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Naphthalene-1,5-Disulphonate
CAS No.	13305-94-7
Molecular Formula	C24H14ClN9Na3O11S3
Molecular Weight	Approx. 830.09 g/mol
Synonyms	Reactive Yellow Dye Intermediate; C.I. Reactive Yellow 42; Trisodium 8-[[4-chloro-6-[(4-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-1,3,6-pyrenetrisulfonate (related structural); 3-[[4-[[5-[(4-Amino-6-chloro-s-triazin-2-yl)amino]-2-sulfophenyl]azo]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]-1,5-naphthalenedisulfonic acid trisodium salt; Azo Triazine Dye; Chlorotriazine Azo Dye Intermediate; Pyrazolone-based reactive dye.
EINECS	Contact for details

Quality Control

Our production of this reactive dye intermediate adheres to strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and meet the stringent requirements of the textile chemical industry. A Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications is provided with each shipment to guarantee traceability and performance reliability.

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 product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect quality and handling properties.

Specification

Item	Specification
Appearance	Yellow to Orange Powder
Identification (IR)	Conforms to Standard
Purity (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Freely Soluble
Heavy Metals (as Pb)	≤ 20 ppm
pH (1% Solution)	6.0 - 8.0

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