Description

5-[[5-Chloro-6-Methyl-2-(Methylsulfonyl)-4-Pyrimidinyl]Amino]-4-Hydroxy-3-(Phenylazo)-2,7-Naphthalenedisulfonic Acid Disodium Salt is a high-purity, water-soluble synthetic organic dye intermediate characterized by its complex azo-naphthalene and pyrimidine-based structure. This compound matters as a critical precursor for the synthesis of specialized dyes and pigments, offering excellent chromophoric properties and thermal stability for demanding applications. It is primarily needed by manufacturers in the textile, ink, and specialty chemical industries for producing high-performance colorants.

Application

• Textile Dye Synthesis: A key intermediate for manufacturing reactive and acid dyes used on cotton, wool, and nylon fibers.
• Inkjet Ink Formulation: Used in the production of high-quality pigments for industrial and photographic-grade inks.
• Functional Dye Production: Serves as a building block for dyes used in lasers, optical data storage, and liquid crystal displays (LCDs).
• Biological Staining Agent Precursor: Potential use in synthesizing stains for histology and microscopy applications.
• Research & Development: Employed in academic and industrial R&D for exploring new chromophores and advanced material science.
• Specialty Coatings: Used to develop colorants for high-durability industrial and automotive coatings.

Basic Information

Product Name	5-[[5-Chloro-6-Methyl-2-(Methylsulfonyl)-4-Pyrimidinyl]Amino]-4-Hydroxy-3-(Phenylazo)-2,7-Naphthalenedisulfonic Acid Disodium Salt
CAS No.	72894-30-5
Molecular Formula	C22H17ClN6Na2O9S3
Molecular Weight	695.03 g/mol
Synonyms	Acid Red 337 (related dye class); 2,7-Naphthalenedisulfonic acid, 5-[(5-chloro-6-methyl-2-(methylsulfonyl)-4-pyrimidinyl)amino]-4-hydroxy-3-(2-phenyldiazenyl)-, sodium salt (1:2); Disodium 5-[(5-chloro-6-methyl-2-methylsulfonylpyrimidin-4-yl)amino]-4-hydroxy-3-(phenylazo)naphthalene-2,7-disulfonate; C.I. 18760; Azo dye intermediate 72894-30-5; Pyrimidine azo dye intermediate; Light-sensitive azo compound
EINECS	Contact for details

Quality Control

Our 5-[[5-Chloro-6-Methyl-2-(Methylsulfonyl)-4-Pyrimidinyl]Amino]-4-Hydroxy-3-(Phenylazo)-2,7-Naphthalenedisulfonic Acid Disodium Salt is produced under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) detailing purity, impurity profile, and physical characteristics are provided and available upon request.

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 material is light-sensitive (store away from light) and hygroscopic (moisture-sensitive); protect from moisture and incompatible materials such as strong oxidizing agents.

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 (Water)	Freely soluble

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