Description

Disodium 4-[[5-Chloro-6-Methyl-2-(Methylsulphonyl)-4-Pyrimidinyl]Amino]-5-Hydroxynaphthalene-2,7-Disulphonate is a high-purity, water-soluble organic intermediate characterized by its complex polycyclic structure. This compound is valued for its role as a key building block in the synthesis of advanced dyes, pigments, and functional colorants. It is primarily sought after by manufacturers in the specialty chemical, textile dye, and high-performance ink industries for developing products with specific chromatic and fastness properties.

Application

• Synthesis of Reactive Dyes: A critical intermediate for manufacturing high-quality reactive dyes used in textile coloring, particularly for cotton and other cellulose fibers.
• Production of Acid Dyes: Used in the formulation of acid dyes for coloring wool, silk, and nylon, offering good wash and light fastness.
• Functional Pigment Development: Serves as a precursor for creating specialized pigments with applications in inks, coatings, and plastics.
• Research & Development: Employed in academic and industrial R&D labs for exploring new chromophores and dye molecules with novel properties.
• Photographic Chemicals: Potential use in the synthesis of chemicals for specialized photographic and imaging applications.

Basic Information

Product Name	Disodium 4-[[5-Chloro-6-Methyl-2-(Methylsulphonyl)-4-Pyrimidinyl]Amino]-5-Hydroxynaphthalene-2,7-Disulphonate
CAS No.	55329-60-7
Molecular Formula	C₁₆H₁₂ClN₃Na₂O₁₀S₃
Molecular Weight	607.91 g/mol
Synonyms	Disodium 5-amino-4-hydroxy-3-[[5-chloro-6-methyl-2-(methylsulfonyl)-4-pyrimidinyl]azo]-2,7-naphthalenedisulfonate; C.I. Reactive Red 238; Reactive Red 238; 4-[[5-Chloro-6-methyl-2-(methylsulfonyl)-4-pyrimidinyl]amino]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt; Disodium 4-((5-chloro-6-methyl-2-(methylsulfonyl)pyrimidin-4-yl)amino)-5-hydroxynaphthalene-2,7-disulfonate
EINECS	Contact for details

Quality Control

Our Disodium 4-[[5-Chloro-6-Methyl-2-(Methylsulphonyl)-4-Pyrimidinyl]Amino]-5-Hydroxynaphthalene-2,7-Disulphonate is produced under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing key parameters such as assay, impurity profile, and physical characteristics are provided and available upon request 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 each use to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear, complete solution

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