Description

Disodium 4-Hydroxy-3-[[4-[2-(Sulphonatooxy)Ethoxy]Phenyl]Azo]-7-[(2,5,6-Trichloro-4-Pyrimidinyl)Amino]Naphthalene-2-Sulphonate is a high-purity, synthetic azo dye intermediate with a complex, functionalized molecular structure designed for specialized applications. Its value lies in its role as a key precursor for creating high-performance dyes and pigments with enhanced properties like color fastness and specific chemical reactivity. This compound is essential for industrial manufacturers and R&D laboratories in the textile, specialty chemical, and advanced materials sectors seeking to develop next-generation colorants.

Application

• Primary Intermediate for Reactive Dyes: A critical building block in the synthesis of high-grade reactive dyes for textile fibers, particularly cotton and other cellulosics.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments for inks, coatings, and plastics requiring specific chromaticity and stability.
• Research & Development: Serves as a key reagent in chemical research for developing novel chromophores and functional dyes with tailored properties.
• Functional Dye Synthesis: Employed in creating dyes for non-textile applications, such as sensitizers for dye-sensitized solar cells (DSSCs) or analytical reagents.
• Fine Chemical Production: Acts as a sophisticated intermediate in multi-step syntheses for advanced fine chemicals and pharmaceutical colorants.

Basic Information

Product Name	Disodium 4-Hydroxy-3-[[4-[2-(Sulphonatooxy)Ethoxy]Phenyl]Azo]-7-[(2,5,6-Trichloro-4-Pyrimidinyl)Amino]Naphthalene-2-Sulphonate
CAS No.	71701-31-0
Molecular Formula	C22H14Cl3N6Na2O10S2
Molecular Weight	762.80 g/mol
Synonyms	Reactive Dye Intermediate 71701-31-0; 2,7-Naphthalenedisulfonic acid, 4-hydroxy-3-((4-((2-(sulfooxy)ethoxy)phenyl)azo)-7-((2,5,6-trichloro-4-pyrimidinyl)amino)-, disodium salt; Azo dye intermediate based on trichloropyrimidine; Disodium salt of a sulfonated azo-naphthalene dye; Trichloropyrimidine azo dye precursor; C.I. Reactive Dye Intermediate; Specialty Azo Chromophore
EINECS	Contact for details

Quality Control

Every batch of our Disodium 4-Hydroxy-3-[[4-[2-(Sulphonatooxy)Ethoxy]Phenyl]Azo]-7-[(2,5,6-Trichloro-4-Pyrimidinyl)Amino]Naphthalene-2-Sulphonate is produced and tested under a strict quality management system. We ensure high batch-to-batch consistency and purity through advanced analytical techniques including HPLC, NMR, and mass spectrometry. Comprehensive Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are 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 after opening to prevent absorption of atmospheric moisture, which can affect product quality and performance.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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