Description

4-Chloronitrosobenzene is a versatile nitroso aromatic compound that serves as a critical synthetic intermediate in advanced organic chemistry. Its unique reactivity profile makes it valuable for constructing complex molecular architectures, particularly in the development of specialized dyes, pigments, and pharmaceutical active ingredients. This high-purity intermediate is essential for research and production chemists in the fine chemical, agrochemical, and pharmaceutical sectors seeking reliable and consistent building blocks.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of various active pharmaceutical ingredients (APIs) and complex heterocyclic compounds.
• Dye and Pigment Manufacturing: Used in the production of specialized azo dyes and high-performance organic pigments.
• Agrochemical Synthesis: Serves as a building block for creating advanced crop protection agents and herbicides.
• Polymer Chemistry: Employed as a monomer or modifier in the synthesis of functional polymers and resins.
• Chemical Research & Development: A valuable reagent for exploring new organic reactions and catalytic processes in academic and industrial R&D labs.
• Cross-Coupling Reactions: Acts as an electrophile in palladium-catalyzed and other metal-mediated coupling reactions.

Basic Information

Product Name	4-Chloronitrosobenzene
CAS No.	932-98-9
Molecular Formula	C6H4ClNO
Molecular Weight	141.55 g/mol
Synonyms	p-Chloronitrosobenzene; 1-Chloro-4-nitrosobenzene; Nitrosobenzene, 4-chloro-; 4-Nitrosochlorobenzene; p-Nitrosochlorobenzene; Benzene, 1-chloro-4-nitroso-; NSC 406851
EINECS	213-265-5

Quality Control

Our 4-Chloronitrosobenzene is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. We provide comprehensive analytical data, including purity assay and impurity profiles determined by HPLC, GC, and NMR. A Certificate of Analysis (COA) is supplied with each shipment, detailing all relevant specifications. Our quality commitment ensures the material meets the stringent requirements for use as a fine chemical intermediate.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Due to its light-sensitive and easily oxidized nature, it is recommended to handle and store the material under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Green to yellow-green crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	92 - 96 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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