Description

1-[2-[[4-[(2-Bromo-4,6-Dinitrophenyl)Azo]-m-Tolyl]Ethylamino]Ethyl]Pyridinium Chloride is a specialized cationic azo dye intermediate of significant commercial importance. Its complex molecular structure, featuring a bromo-dinitrophenyl azo group linked to a pyridinium moiety, makes it a critical precursor for synthesizing high-performance dyes and pigments. This compound is essential for manufacturers and R&D laboratories focused on developing colorants for textiles, inks, and advanced materials requiring specific cationic properties and light-fastness.

Application

• Primary intermediate for the synthesis of cationic dyes used in acrylic fiber dyeing.
• Key precursor in the production of specialty pigments for inks and coatings.
• Used in research and development of functional dyes for non-textile applications, such as digital printing.
• Important building block for creating photoactive compounds in material science research.
• Employed in the synthesis of dyes for paper coloration and security printing applications.
• Utilized in the development of biological stains and histochemical markers in life sciences.

Basic Information

Product Name	1-[2-[[4-[(2-Bromo-4,6-Dinitrophenyl)Azo]-m-Tolyl]Ethylamino]Ethyl]Pyridinium Chloride
CAS No.	72361-40-1
Molecular Formula	C22H22BrClN6O4
Molecular Weight	549.81 g/mol
Synonyms	Pyridinium, 1-[2-[[4-[(2-bromo-4,6-dinitrophenyl)azo]-3-methylphenyl]ethylamino]ethyl]-, chloride; C.I. Basic Red 18:1; Azoic Diazo Component 42; 2-Bromo-4,6-dinitrobenzenediazonium salt derivative; Cationic azo dye intermediate; 1-[2-({4-[(2-Bromo-4,6-dinitrophenyl)diazenyl]-3-methylphenyl}ethylamino)ethyl]pyridin-1-ium chloride
EINECS	Contact for details

Quality Control

Our production of 1-[2-[[4-[(2-Bromo-4,6-Dinitrophenyl)Azo]-m-Tolyl]Ethylamino]Ethyl]Pyridinium Chloride adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. Each lot undergoes comprehensive analysis, including HPLC for assay determination and impurity profiling, to meet exacting customer specifications. Certificates of Analysis (COA) documenting identity, purity, and related substances are provided with every shipment, supporting compliance in regulated manufacturing environments.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, handling and packaging should minimize exposure to direct light to preserve product integrity.

Specification

Item	Specification
Appearance	Dark red to brown powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 1.0%; Total impurities ≤ 3.0%

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