Description

Trisodium 4-[[4-[[(2,3-Dichloro-6-Quinoxalinyl)Carbonyl]Amino]-2-Sulphonatophenyl]Azo]-4,5-Dihydro-5-Oxo-1-(4-Sulphonatophenyl)-1H-Pyrazole-3-Carboxylate is a high-purity, water-soluble azo dye intermediate with a complex heterocyclic structure. This compound is valued for its ability to impart specific color properties and functional characteristics in advanced synthetic applications. It is primarily sought by manufacturers in the specialty dyes and pigments industry, as well as for research and development in fine chemical synthesis.

Application

• Synthesis of Reactive Dyes: A key intermediate for producing high-performance reactive dyes used in textile coloring, particularly for cotton and other cellulose fibers.
• Specialty Pigment Manufacturing: Used in the creation of complex organic pigments for inks, coatings, and plastics requiring specific hue and stability.
• Functional Dye Production: Serves as a precursor for dyes used in non-textile applications, such as laser dyes, optical data storage, and sensitizers.
• Research & Development: Employed in academic and industrial R&D labs for exploring new chromophores and advanced material science applications.
• Analytical Chemistry: Can be utilized as a staining agent or a complexometric indicator in specific analytical methodologies.

Basic Information

Item	Details
Product Name	Trisodium 4-[[4-[[(2,3-Dichloro-6-Quinoxalinyl)Carbonyl]Amino]-2-Sulphonatophenyl]Azo]-4,5-Dihydro-5-Oxo-1-(4-Sulphonatophenyl)-1H-Pyrazole-3-Carboxylate
CAS No.	75199-00-7
Molecular Formula	C25H12Cl2N6Na3O11S2
Molecular Weight	823.46 g/mol
Synonyms	Reactive Black 5 Intermediate; C.I. Reactive Black 5, trisodium salt; Trisodium 1-(4-sulfonatophenyl)-4-[[4-[[(2,3-dichloro-6-quinoxalinyl)carbonyl]amino]-2-sulfonatophenyl]azo]-5-oxo-4,5-dihydro-1H-pyrazole-3-carboxylate; 75199-00-7; Reactive Black 5; Remazol Black B; Lanasol Black B
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality management systems. Every batch is subjected to comprehensive analytical testing, including HPLC, UV-Vis, and elemental analysis, to ensure consistent purity and performance. A Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with each shipment to guarantee traceability and compliance with your specifications.

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). This product is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark blue to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Solubility (in Water)	Clear solution
Heavy Metals (as Pb)	≤ 20 ppm

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