Description

2-Chloro-4-[(4-Nitrophenyl)Azo]Benzenediazonium Hydrogen Sulphate is a specialized diazonium salt compound, primarily valued as a critical intermediate in the synthesis of azo dyes and pigments. Its precise molecular structure enables the introduction of specific chromophoric and auxochromic groups, allowing for the fine-tuning of color properties such as hue, lightfastness, and solubility in target matrices. This chemical is essential for manufacturers and R&D laboratories in the dyestuff, textile, ink, and specialty chemical industries seeking to develop high-performance colorants.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a key building block in the production of yellow to orange-shade azo colorants for textiles, leather, and plastics.
• Specialty Ink Formulation: Used in the synthesis of pigments for high-performance printing inks, including packaging and security inks.
• Research & Development: Employed in organic synthesis laboratories for studying diazonium coupling reactions and developing novel chromophores.
• Functional Dye Synthesis: A precursor for dyes with specialized applications, such as sensitizers in photodynamic therapy or analytical reagents.
• Polymer Colorant: Intermediate in creating colorants for synthetic fibers and engineering polymers requiring specific thermal and chemical stability.

Basic Information

Item	Details
Product Name	2-Chloro-4-[(4-Nitrophenyl)Azo]Benzenediazonium Hydrogen Sulphate
CAS No.	72845-90-0
Molecular Formula	C12H8ClN5O6S
Molecular Weight	385.74 g/mol
Synonyms	2-Chloro-4-[(4-nitrophenyl)diazenyl]benzenediazonium hydrogen sulfate; 4-[(4-Nitrophenyl)azo]-2-chlorobenzenediazonium hydrogen sulfate; Fast Scarlet G Base; Azoic Diazo Component; Diazonium salt of 2-chloro-4-[(4-nitrophenyl)azo]aniline; C.I. Azoic Diazo Component; Light-sensitive diazonium salt intermediate
EINECS	Contact for details

Quality Control

Our production of 2-Chloro-4-[(4-Nitrophenyl)Azo]Benzenediazonium Hydrogen Sulphate adheres to stringent quality management protocols. Every batch is analyzed to confirm identity, purity, and consistency using advanced techniques like HPLC and spectroscopic methods. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical parameters to ensure the material meets your specific process 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 light-sensitive nature, minimize exposure during handling. Keep away from heat, sparks, and incompatible materials such as strong bases and reducing agents.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 2.0%
Solubility Test	Soluble in polar aprotic solvents

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