Description

Disodium 4,4'-[Carbonylbis[Imino-4,1-Phenylene(4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazole-1,4-Diyl)Azo]]Bis(3-Hydroxy-7-Nitronaphthalene-1-Sulphonate) is a high-purity, complex azo dye intermediate known for its precise chromophoric properties. This compound is critical for synthesizing specialized dyes and pigments that require excellent lightfastness and color strength. It is primarily utilized by manufacturers in the textile, ink, and advanced materials sectors seeking consistent quality for high-performance applications.

Application

• Textile Dye Intermediate: A key precursor for synthesizing high-grade, wash-fast reactive and direct dyes for natural and synthetic fibers.
• Specialty Ink Formulation: Used in the production of pigments for inks requiring specific color properties and stability, including security and high-resolution printing inks.
• Functional Dye Synthesis: Serves as a building block for dyes used in non-textile applications, such as laser dyes, optical data storage, and liquid crystal displays (LCDs).
• Research & Development: Employed in chemical research for developing novel chromophores and studying structure-property relationships in dye chemistry.
• Analytical Reagents: Can be utilized as a staining agent or colorimetric indicator in specific analytical and biological staining procedures.

Basic Information

Product Name	Disodium 4,4'-[Carbonylbis[Imino-4,1-Phenylene(4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazole-1,4-Diyl)Azo]]Bis(3-Hydroxy-7-Nitronaphthalene-1-Sulphonate)
CAS No.	6410-47-5
Molecular Formula	C48H28N10Na2O16S2
Molecular Weight	1086.9 g/mol
Synonyms	Disodium 4,4'-[carbonylbis[imino(4,5-dihydro-3-methyl-5-oxo-1H-pyrazole-4,1-diyl-4,1-phenylene)azo]]bis(3-hydroxy-7-nitro-1-naphthalenesulfonate); C.I. Reactive Brown 9; Reactive Brown 9; Disodium 4,4'-[carbonylbis[imino(3-methyl-5-oxo-1H-pyrazole-4,1-diyl-4,1-phenylene)azo]]bis(3-hydroxy-7-nitro-1-naphthalenesulfonate); 6410-47-5; Reactive Brown K-4R; Kayacion Brown P-4R
EINECS	229-123-4

Quality Control

Our production of Disodium 4,4'-[Carbonylbis[Imino-4,1-Phenylene(4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazole-1,4-Diyl)Azo]]Bis(3-Hydroxy-7-Nitronaphthalene-1-Sulphonate) adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure high purity and batch-to-batch consistency, meeting the exacting standards required for industrial dye synthesis. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

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 to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content (KF)	≤ 5.0%
Solubility (1% in Water)	Complete, 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.