Description

Disodium 8-[[5-[(2-Bromo-1-Oxoallyl)Amino]-2-Sulphonatophenyl]Azo]-1-[(2-Chlorophenyl)Amino]-9-Hydroxy-2-Methyl-1H-Naphth[1,2-D]Imidazole-7-Sulphonate is a high-purity, complex azo dye intermediate essential for producing vibrant and stable colorants. This compound matters for manufacturers requiring precise chromophore structures to achieve specific shades and performance characteristics in demanding applications. It is primarily needed by the textile, ink, and specialty chemical industries for synthesizing advanced dyes and pigments.

Application

• Textile Dye Synthesis: A key intermediate for manufacturing reactive and direct dyes for cotton, wool, and nylon fibers.
• Inkjet Ink Formulation: Used in the production of high-performance colorants for industrial and graphic arts inks.
• Specialty Pigment Production: Serves as a precursor for creating complex organic pigments with enhanced lightfastness and weather resistance.
• Functional Dye Manufacturing: Employed in synthesizing dyes for non-textile applications, such as lasers, optical data storage, and sensors.
• Research & Development: A valuable building block for chemists developing novel chromophores and colorant molecules in academic and industrial labs.

Basic Information

Product Name	Disodium 8-[[5-[(2-Bromo-1-Oxoallyl)Amino]-2-Sulphonatophenyl]Azo]-1-[(2-Chlorophenyl)Amino]-9-Hydroxy-2-Methyl-1H-Naphth[1,2-D]Imidazole-7-Sulphonate
CAS No.	72496-91-4
Molecular Formula	C29H20BrClN6Na2O9S2
Molecular Weight	821.97 g/mol
Synonyms	Reactive Black 5 Analog Intermediate; C.I. Reactive Black 5 Related Compound; Disodium 1-[(2-Chlorophenyl)amino]-9-hydroxy-2-methyl-8-[[5-[(2-bromo-1-oxoallyl)amino]-2-sulfophenyl]azo]-1H-naphth[1,2-d]imidazole-7-sulfonate; Azo Dye Intermediate 72496-91-4; Complex Naphth[1,2-d]imidazole Derivative; Sulfonated Azo Dye Precursor; Bromo-chloro azo dye intermediate
EINECS	Contact for details

Quality Control

Our Disodium 8-[[5-[(2-Bromo-1-Oxoallyl)Amino]-2-Sulphonatophenyl]Azo]-1-[(2-Chlorophenyl)Amino]-9-Hydroxy-2-Methyl-1H-Naphth[1,2-D]Imidazole-7-Sulphonate is produced under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise compositional specifications. Certificates of Analysis (COA) detailing all quality parameters are available upon request to support your quality assurance and regulatory compliance needs.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed when not in use to prevent absorption of atmospheric moisture, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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