Description

3-Chloro-4-Methoxyphenyl Isocyanate is a versatile aromatic isocyanate monomer used as a key building block in the synthesis of advanced polymers and fine chemicals. This compound is valued for its reactivity, which enables the introduction of the 3-chloro-4-methoxyphenyl moiety into target molecules, enhancing their structural and functional properties. It is primarily sought by R&D chemists and process engineers in the agrochemical, pharmaceutical, and specialty polymer industries for creating novel active ingredients, intermediates, and high-performance materials.

Application

• Agrochemical Intermediate: A critical precursor in the synthesis of novel herbicides, fungicides, and insecticides, where the chloro and methoxy substituents contribute to biological activity.
• Pharmaceutical Building Block: Used to construct pharmacologically active molecules, including potential candidates for drug discovery programs targeting various therapeutic areas.
• Polyurethane & Polymer Modification: Serves as a reactive monomer for producing specialty polyurethanes, polyureas, and coatings with tailored properties like chemical resistance or specific functionality.
• Cross-linking Agent: Employed in the formulation of advanced adhesives, sealants, and elastomers that require specific curing profiles and enhanced performance characteristics.
• Chemical Research (R&D): A valuable reagent in academic and industrial laboratories for exploring new organic reactions and synthesizing complex heterocyclic compounds.
• Dye & Pigment Synthesis: Acts as an intermediate in the production of specialized dyes and organic pigments, contributing to color fastness and molecular stability.

Basic Information

Product Name	3-Chloro-4-Methoxyphenyl Isocyanate
CAS No.	28395-76-8
Molecular Formula	C8H6ClNO2
Molecular Weight	183.59 g/mol
Synonyms	1-Chloro-2-Methoxy-4-Isocyanatobenzene; 4-Isocyanato-2-Chloro-1-Methoxybenzene; 3-Chloro-4-Methoxybenzenisocyanate; 3-Chloro-p-anisyl isocyanate; 2-Chloro-4-Isocyanatoanisole; 3-Chloro-4-methoxyphenylisocyanate; Isocyanic Acid, 3-Chloro-4-Methoxyphenyl Ester
EINECS	Contact for details

Quality Control

Our 3-Chloro-4-Methoxyphenyl Isocyanate is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including assay by HPLC and impurity profiling, to ensure high purity and consistency. A Certificate of Analysis (COA) detailing specific results for identity, purity, and related substances is 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, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) after opening to prevent degradation from moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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