Description

3-Chloro-2-Methylphenyl Isocyanate is a versatile aromatic isocyanate monomer used as a key building block in the synthesis of advanced polymers and fine chemicals. Its primary value lies in introducing the 3-chloro-2-methylphenyl moiety into target molecules, enabling the creation of materials with tailored properties such as enhanced durability, chemical resistance, and specific reactivity. This compound is essential for R&D and production in industries including agrochemicals, pharmaceuticals, and specialty polymers, where it serves as a critical intermediate for urethanes, ureas, and other functional derivatives.

Application

• Agrochemical Intermediate: A key precursor in the synthesis of advanced herbicides, fungicides, and insecticides, where the chloromethylphenyl group contributes to biological activity.
• Pharmaceutical Building Block: Used in medicinal chemistry research for constructing novel drug candidates, particularly those targeting specific receptor sites.
• Polyurethane & Polyurea Synthesis: Serves as a reactive monomer for producing specialty polyurethane elastomers, coatings, adhesives, and sealants with enhanced chemical and thermal stability.
• Cross-linking Agent: Employed in the manufacture of high-performance resins and polymers that require specific cross-linking density and mechanical properties.
• Chemical Research & Development: A valuable reagent in academic and industrial labs for exploring new organic reactions and synthesizing complex heterocyclic compounds.
• Dye & Pigment Intermediate: Used in the production of specialized colorants and pigments for industrial applications.

Basic Information

Product Name	3-Chloro-2-Methylphenyl Isocyanate
CAS No.	40397-90-8
Molecular Formula	C8H6ClNO
Molecular Weight	167.59 g/mol
Synonyms	2-Methyl-3-chlorophenyl isocyanate; 3-Chloro-o-tolyl isocyanate; 1-Chloro-2-isocyanato-3-methylbenzene; Isocyanic acid, 3-chloro-2-methylphenyl ester; 3-Chloro-2-methylbenzenisocyanate; (3-Chloro-2-methylphenyl)isocyanate
EINECS	254-904-6

Quality Control

Our 3-Chloro-2-Methylphenyl Isocyanate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatography (HPLC/GC) and spectroscopic methods, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with every shipment to guarantee compliance with your specifications and support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent degradation from moisture. Keep away from heat, sparks, open flames, and incompatible materials such as alcohols, amines, and strong bases.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Density (at 20°C)	~1.25 g/cm³

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