Description

1,7-Naphthalenedisulfonic Acid, 4-[(5-Chloro-2-Fluoro-6-Methyl-4-Pyrimidinyl)Amino]-5-Hydroxy-6-[(2-Sulfophenyl)Azo]-, Trisodium Salt is a high-purity, water-soluble azo dye intermediate and specialty chemical. This compound is valued for its precise molecular structure, which imparts specific chromophoric and functional properties critical for advanced applications. It is primarily required by manufacturers in the dye and pigment industry, as well as researchers in material science and analytical chemistry developing colorimetric sensors or functional materials. The CAS number for this substance is 75198-87-7.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-performance reactive dyes for textiles, particularly cotton and cellulose fibers.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments requiring specific shade, brightness, and stability.
• Functional Dye Synthesis: Serves as a precursor for dyes used in ink-jet inks, laser dyes, and other high-tech imaging applications.
• Research & Development: Employed in academic and industrial R&D for creating novel chromophores, studying azo chemistry, and developing colorimetric indicators.
• Analytical Reagents: Potential use as a staining agent or a complexometric indicator in specific analytical methodologies.

Basic Information

Product Name	1,7-Naphthalenedisulfonic Acid, 4-[(5-Chloro-2-Fluoro-6-Methyl-4-Pyrimidinyl)Amino]-5-Hydroxy-6-[(2-Sulfophenyl)Azo]-, Trisodium Salt
CAS No.	75198-87-7
Molecular Formula	C21H12ClFN5Na3O10S3
Molecular Weight	729.96 g/mol (approx.)
Synonyms	Trisodium 4-[(5-chloro-2-fluoro-6-methylpyrimidin-4-yl)amino]-5-hydroxy-6-[(2-sulfophenyl)diazenyl]naphthalene-1,7-disulfonate; C.I. Reactive Orange 107 (related class); Azo dye intermediate based on naphthalenedisulfonic acid; 4-[(5-Chloro-2-fluoro-6-methyl-4-pyrimidinyl)amino]-5-hydroxy-6-[(2-sulfophenyl)azo]-1,7-naphthalenedisulfonic acid trisodium salt; Reactive dye intermediate 75198-87-7
EINECS	Contact for details

Quality Control

Our production of this specialty intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and purity. Each lot is analyzed using advanced techniques like HPLC and spectrophotometry to verify identity and strength. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications is provided with every shipment to support your quality assurance and regulatory 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). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Freely soluble

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