Description

Trisodium 4-Hydroxy-3-[(2-Sulphonatophenyl)Azo]-5-[(2,5,6-Trichloropyrimidin-4-Yl)Amino]Naphthalene-2,7-Disulphonate is a high-purity, water-soluble reactive dye intermediate. This compound is critical for synthesizing high-performance, wash-fast dyes with excellent color properties. It is primarily needed by manufacturers in the textile, leather, and specialty chemical industries for producing vibrant and durable colorants.

Application

• Primary Intermediate for Reactive Dyes: Key building block for synthesizing high-quality reactive dyes used in cotton, viscose, and other cellulosic fiber dyeing.
• Textile Industry: Enables the production of dyes with superior wash-fastness, light-fastness, and brilliant shades for fabrics.
• Leather Coloring: Used in the formulation of dyes for coloring leather goods, providing deep, uniform penetration.
• Specialty Ink Production: Serves as a precursor for pigments and dyes used in high-performance inks for digital and industrial printing.
• Research & Development: Utilized in chemical R&D labs for developing novel chromophores and studying azo dye chemistry.
• Paper Dyeing: Applied in the manufacturing of dyes for specialty paper products requiring specific colorfastness.

Basic Information

Product Name	Trisodium 4-Hydroxy-3-[(2-Sulphonatophenyl)Azo]-5-[(2,5,6-Trichloropyrimidin-4-Yl)Amino]Naphthalene-2,7-Disulphonate
CAS No.	15792-41-3
Molecular Formula	C26H13Cl3N6Na3O11S3
Molecular Weight	Approx. 869.93 g/mol
Synonyms	Reactive Dye Intermediate 15792-41-3; C.I. Reactive Red 120; Trisodium 5-[(2,5,6-trichloro-4-pyrimidinyl)amino]-4-hydroxy-3-[(2-sulfophenyl)azo]-2,7-naphthalenedisulfonate; Reactive Red 120; 4-Hydroxy-3-[(2-sulfophenyl)azo]-5-[(2,5,6-trichloro-4-pyrimidinyl)amino]-2,7-naphthalenedisulfonic acid trisodium salt; 2,7-Naphthalenedisulfonic acid, 5-[(2,5,6-trichloro-4-pyrimidinyl)amino]-4-hydroxy-3-[(2-sulfophenyl)azo]-, trisodium salt
EINECS	Contact for details

Quality Control

Our Trisodium 4-Hydroxy-3-[(2-Sulphonatophenyl)Azo]-5-[(2,5,6-Trichloropyrimidin-4-Yl)Amino]Naphthalene-2,7-Disulphonate is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Products undergo rigorous testing, including HPLC for assay and impurity profiling. Certificates of Analysis (COA) documenting identity, purity, and related substances are available upon request to support your quality assurance processes.

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, which can affect product performance and stability.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Solubility (in Water)	Clear solution
Heavy Metals (as Pb)	≤ 20 ppm

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