Description

3-Ethylphenyl Isocyanate is a versatile aromatic isocyanate monomer essential for synthesizing high-performance polymers and specialty chemicals. Its reactive isocyanate group enables the formation of urethane, urea, and amide linkages, making it a critical building block for advanced materials. This compound is particularly valuable for manufacturers in the agrochemical, pharmaceutical, and polymer industries seeking to develop products with tailored properties.

Application

• Agrochemical Intermediates: A key precursor in the synthesis of modern pesticides, herbicides, and fungicides, where it is used to create active ingredients with specific biological activity.
• Pharmaceutical Synthesis: Serves as a vital building block for constructing pharmacologically active molecules, including potential drug candidates and active pharmaceutical ingredients (APIs).
• Polymer & Resin Production: Used in the manufacture of specialized polyurethanes, polyureas, and coatings, contributing to enhanced durability, chemical resistance, and adhesion properties.
• Crosslinking Agent: Functions as an effective crosslinker in polymer systems to improve thermal stability, mechanical strength, and solvent resistance in final products.
• Chemical Research & Development: Employed in R&D laboratories for exploring novel chemical entities, material science applications, and process optimization.
• Specialty Adhesives & Sealants: Incorporated into formulations for high-performance adhesives and sealants that require strong bonding under demanding environmental conditions.

Basic Information

Product Name	3-Ethylphenyl Isocyanate
CAS No.	23138-58-1
Molecular Formula	C9H9NO
Molecular Weight	147.17 g/mol
Synonyms	m-Ethylphenyl isocyanate; 3-Ethylphenyl isocyanate; 1-Isocyanato-3-ethylbenzene; 3-Ethylbenzene isocyanate; m-Ethylbenzyl isocyanate; Isocyanic acid, 3-ethylphenyl ester; 3-Ethylbenzenisocyanate; NSC 163959
EINECS	Contact for details

Quality Control

Our 3-Ethylphenyl Isocyanate is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay, impurity profiling, and identity confirmation. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your specifications and industry standards.

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). This product is hygroscopic (moisture-sensitive) and must be kept under a dry inert atmosphere (e.g., nitrogen) to prevent degradation and polymerization. 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
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Density (at 20°C)	~1.05 g/cm³
Refractive Index (n20D)	~1.525

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