Description

5-[[4-[(2-Bromo-1-Oxoallyl)Amino]Benzoyl]Amino]-3-[[5-[(2-Bromo-1-Oxoallyl)Amino]-2-Sulphophenyl]Azo]-4-Hydroxynaphthalene-2,7-Disulphonic Acid is a specialized, high-value reactive dye intermediate and chromophore. This compound is engineered to deliver exceptional color strength and covalent bonding properties in advanced dye synthesis. It is primarily required by manufacturers in the textile, ink, and specialty polymer industries seeking to produce vibrant, wash-fast colors.

Application

• Reactive Dye Synthesis: A key intermediate for manufacturing high-performance reactive dyes for cotton, wool, and nylon.
• Textile Coloring: Imparts deep, covalent-bonded shades with excellent light and wash fastness in fabric dyeing and printing.
• Inkjet Inks: Used in the formulation of professional-grade pigment and dye-based inks for high-color-gamut printing.
• Functional Polymer Production: Serves as a chromophoric monomer for creating colored polymers with specific optical properties.
• Research & Development: Employed in academic and industrial R&D for developing novel colorants and photonic materials.
• Analytical Chemistry: Can be used as a staining agent or a complexometric indicator in specific analytical procedures.

Basic Information

Product Name	5-[[4-[(2-Bromo-1-Oxoallyl)Amino]Benzoyl]Amino]-3-[[5-[(2-Bromo-1-Oxoallyl)Amino]-2-Sulphophenyl]Azo]-4-Hydroxynaphthalene-2,7-Disulphonic Acid
CAS No.	68252-85-7
Molecular Formula	C30H21Br2N5O12S3
Molecular Weight	~923.51 g/mol
Synonyms	Reactive Black 5 precursor; 5-[[4-[(2-Bromoacryloyl)amino]benzoyl]amino]-3-[[5-[(2-bromoacryloyl)amino]-2-sulfophenyl]azo]-4-hydroxy-2,7-naphthalenedisulfonic acid; Azo dye intermediate 68252-85-7; Bis(2-bromoacryloyl) derivative of an azo dye acid; C.I. Reactive Black 5 related intermediate; 2,7-Naphthalenedisulfonic acid derivative; Bromoacrylamido azo dye acid
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality management systems. Every batch is analyzed to ensure consistent purity, reactivity, and chromatic performance. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications is provided with each shipment to guarantee it meets your precise formulation requirements.

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 reactivity and purity.

Specification

Item	Specification
Appearance	Dark blue to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture (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.