Description

7-[[4-[(2,5,6-Trichloro-4-Pyrimidinyl)Amino]Phenyl]Azo]-1,3,5-Naphthalenetrisulfonic Acid Trisodium Salt is a high-purity, water-soluble azo dye intermediate characterized by its complex aromatic structure. This compound is valued for its ability to impart specific color properties and act as a key building block in the synthesis of advanced dyes and pigments. It is primarily sought after by manufacturers in the specialty chemicals sector for applications requiring precise chromophoric performance and chemical stability.

Application

• Primary Intermediate for Reactive Dyes: A key precursor in the synthesis of high-performance reactive dyes for textile coloring, particularly for cotton and other cellulose fibers.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments for inks, coatings, and plastics where high color strength and stability are required.
• Functional Dye Synthesis: Serves as a building block for dyes used in specialized applications, including laser dyes, optical data storage media, and non-linear optical materials.
• Biochemical Staining: Potential use as a staining agent or chromophore in the development of histological stains and diagnostic reagents.
• Research & Development: Employed in chemical research for studying azo coupling reactions and developing novel chromogenic compounds.

Basic Information

Product Name	7-[[4-[(2,5,6-Trichloro-4-Pyrimidinyl)Amino]Phenyl]Azo]-1,3,5-Naphthalenetrisulfonic Acid Trisodium Salt
CAS No.	72927-95-8
Molecular Formula	C20H10Cl3N6Na3O9S3
Molecular Weight	776.85 g/mol
Synonyms	Trisodium 7-[[4-[(2,5,6-trichloro-4-pyrimidinyl)amino]phenyl]azo]-1,3,5-naphthalenetrisulfonate; C.I. Reactive Red 241; Reactive Red 241; 7-[(4-((2,5,6-Trichloro-4-pyrimidinyl)amino)phenyl)azo]-1,3,5-naphthalenetrisulfonic acid trisodium salt; Trisodium 5-[(4-[(2,5,6-trichloro-4-pyrimidinyl)amino]phenyl)azo]-1,3,6-naphthalenetrisulfonate; Reactive Red KE-3B (related commercial grade)
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed to confirm identity, strength, and the absence of critical impurities. A comprehensive Certificate of Analysis (COA) detailing specifications such as assay, impurity profile, and solubility is provided with every shipment to support your quality assurance processes.

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 (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product performance and handling.

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
Related Substances (HPLC)	Total impurities ≤ 3.0%

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