Description

n-[2-[(2-Bromo-4-Nitrophenyl)Azo]-5-[[2-(2,5-Dioxo-1-Pyrrolidinyl)Ethyl]Ethylamino]Phenyl]Acetamide is a specialized azo dye intermediate with a reactive maleimide functional group, enabling covalent bonding to thiol-containing molecules. This compound matters for its role in creating high-performance, color-fast dyes and pigments, as well as its utility in advanced material science for site-specific bioconjugation. It is primarily needed by manufacturers in the textile dyeing, polymer coloration, and biochemical research sectors seeking to develop products with enhanced stability and tailored properties.

Application

• Reactive Dye Synthesis: A key intermediate for producing high-value, fiber-reactive dyes for cotton, wool, and nylon.
• Pigment Manufacturing: Used in the creation of organic pigments for inks, coatings, and plastics requiring excellent lightfastness.
• Bioconjugation & Labeling: The maleimide group allows for stable thiol-ene coupling, making it suitable for labeling proteins, antibodies, and peptides in diagnostic and research applications.
• Functional Polymer Production: Incorporated into polymer chains to introduce chromophoric or cross-linking functionalities.
• Analytical Chemistry: Can be used as a derivatization agent or a chromogenic probe in specific assay development.
• Photographic & Imaging Materials: Potential use in advanced colorant systems for specialized imaging technologies.

Basic Information

Product Name	n-[2-[(2-Bromo-4-Nitrophenyl)Azo]-5-[[2-(2,5-Dioxo-1-Pyrrolidinyl)Ethyl]Ethylamino]Phenyl]Acetamide
CAS No.	63467-25-4
Molecular Formula	C22H22BrN7O5
Molecular Weight	544.36 g/mol
Synonyms	2-[(2-Bromo-4-nitrophenyl)azo]-5-[2-(2,5-dioxo-1-pyrrolidinyl)ethyl-ethylamino]acetanilide; Acetamide, N-[2-[(2-bromo-4-nitrophenyl)azo]-5-[[2-(2,5-dioxo-1-pyrrolidinyl)ethyl]ethylamino]phenyl]-; C.I. Disperse Yellow 211; Disperse Yellow 211; Azo dye intermediate 63467-25-4; Maleimide-functionalized azo dye; Reactive azo dye precursor
EINECS	Contact for details

Quality Control

Our production of n-[2-[(2-Bromo-4-Nitrophenyl)Azo]-5-[[2-(2,5-Dioxo-1-Pyrrolidinyl)Ethyl]Ethylamino]Phenyl]Acetamide adheres to a strict quality management system. Every batch undergoes rigorous analytical testing to ensure high purity, consistent performance, and traceability. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Orange to red-brown powder or crystals
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Area %)
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Complies with ICH guidelines

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