Description

3-[(2,5-Dimethyl-4-Sulfophenyl)Azo]-4-Hydroxy-7-[(2,5,6-Trichloropyrimidin-4-Yl)Amino]-2-Naphthalenesulfonic Acid Disodium Salt is a high-purity, reactive dye intermediate of significant commercial importance. Its value lies in its role as a key precursor for synthesizing specialized, high-performance dyes and pigments, particularly in the textile and specialty chemical sectors. This compound is essential for manufacturers requiring precise chromophores to produce colors with specific fastness properties and application characteristics.

Application

• Primary Intermediate for Reactive Dyes: A critical building block in the synthesis of high-quality reactive dyes used for coloring cellulosic fibers like cotton, viscose, and linen.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments for inks, coatings, and plastics that demand excellent color strength and stability.
• Functional Dye Synthesis: Serves as a precursor for dyes with specialized applications, including those used in biological staining or as sensitizers in photochemical processes.
• Research & Development: A valuable compound for chemical R&D laboratories exploring new chromogenic systems and advanced material science applications.
• Textile Chemical Production: Integral to the supply chain for manufacturers of textile auxiliaries and finishing chemicals that incorporate specific colorants.

Basic Information

Product Name	3-[(2,5-Dimethyl-4-Sulfophenyl)Azo]-4-Hydroxy-7-[(2,5,6-Trichloropyrimidin-4-Yl)Amino]-2-Naphthalenesulfonic Acid Disodium Salt
CAS No.	68214-67-5
Molecular Formula	C22H14Cl3N6Na2O8S2
Molecular Weight	722.80 g/mol
Synonyms	Reactive Dye Intermediate 68214-67-5; C.I. Reactive Red 198 Intermediate; Disodium 3-[(2,5-dimethyl-4-sulfophenyl)azo]-4-hydroxy-7-[(2,5,6-trichloropyrimidin-4-yl)amino]-2-naphthalenesulfonate; 2-Naphthalenesulfonic acid, 3-[(2,5-dimethyl-4-sulfophenyl)azo]-4-hydroxy-7-[(2,5,6-trichloropyrimidin-4-yl)amino]-, disodium salt; Trichloropyrimidinyl Azo Naphthalene Sulfonate; Azo Pyrimidine Dye Intermediate
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and high chemical purity. Quality is verified through analytical methods including HPLC, UV-Vis spectroscopy, and titration to confirm identity, assay, and impurity profiles. A Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance and regulatory compliance needs.

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 moisture-sensitive; keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Solubility (1% in Water)	Complete, 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.