Description

7-[[2-[(Aminocarbonyl)Amino]-4-[(2-Bromo-1-Oxoallyl)Amino]Phenyl]Azo]Naphthalene-1,3-Disulphonic Acid is a specialized azo dye intermediate characterized by its complex disulphonic acid structure and reactive bromoacetyl group. This compound matters for its role as a key precursor in the synthesis of high-value, reactive dyes and pigments, offering a versatile platform for creating colorants with strong substrate affinity. Industries involved in textile dyeing, specialty ink formulation, and advanced material research require this intermediate for developing products with enhanced color fastness and specific functional properties.

Application

• Reactive Dye Synthesis: Primary use as a critical intermediate for manufacturing fiber-reactive dyes, particularly for cotton and other cellulosic textiles.
• Specialty Pigment Production: Serves as a building block for creating high-performance organic pigments used in inks, coatings, and plastics.
• Biomolecular Staining: Potential application in the development of histological stains or fluorescent probes for laboratory and diagnostic use.
• Photographic Sensitizers: Can be utilized in the formulation of light-sensitive layers for specialized photographic and imaging materials.
• Research & Development: Used in chemical research for studying azo coupling reactions and developing novel chromophores with specific optical properties.
• Liquid Crystal Dyes: Exploration into electronic display applications as a dichroic dye component for liquid crystal devices (LCDs).

Basic Information

Item	Details
Product Name	7-[[2-[(Aminocarbonyl)Amino]-4-[(2-Bromo-1-Oxoallyl)Amino]Phenyl]Azo]Naphthalene-1,3-Disulphonic Acid
CAS No.	93804-43-4
Molecular Formula	C20H15BrN6O7S2
Molecular Weight	611.40 g/mol
Synonyms	Acid Red 337 (related dye class); 1,3-Naphthalenedisulfonic acid, 7-[[2-[(aminocarbonyl)amino]-4-[(2-bromo-1-oxo-2-propen-1-yl)amino]phenyl]azo]-; Reactive Dye Intermediate BR-43; 2-Bromoacryloyl Azo Dye Precursor; 93804-43-4; Azo dye intermediate CAS 93804-43-4; Bromoacetyl azo naphthalene disulfonate
EINECS	Contact for details

Quality Control

Our production of 7-[[2-[(Aminocarbonyl)Amino]-4-[(2-Bromo-1-Oxoallyl)Amino]Phenyl]Azo]Naphthalene-1,3-Disulphonic Acid adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with customer specifications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical characteristics is provided with each shipment to guarantee traceability and support your quality assurance protocols.

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 under dry conditions to prevent degradation. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%
Solubility (Water)	Soluble, clear solution

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