Description

4-Chlorophenyl Isocyanate is a versatile and reactive aromatic isocyanate building block essential for synthesizing advanced chemical intermediates. Its primary value lies in introducing the 4-chlorophenyl carbamoyl moiety, enabling the creation of compounds with tailored properties for high-performance applications. This product is critically needed by R&D laboratories and industrial manufacturers in the agrochemical, pharmaceutical, and specialty polymer sectors for developing active ingredients, pharmaceutical scaffolds, and functional materials.

Application

• Agrochemical Intermediate: Key precursor in the synthesis of phenylurea herbicides and other crop protection agents.
• Pharmaceutical Synthesis: Building block for creating potential drug candidates, including enzyme inhibitors and receptor ligands.
• Polymer Modification: Used to produce polyurethanes and polyurea coatings with enhanced chemical resistance and durability.
• Crosslinking Agent: Imparts crosslinks in specialty resins and elastomers to improve thermal and mechanical properties.
• Chemical Research (R&D): Fundamental reagent for exploring new carbamate and urea derivatives in academic and industrial research.
• Dye and Pigment Manufacturing: Intermediate in the production of certain specialized colorants and photographic chemicals.

Basic Information

Product Name	4-Chlorophenyl Isocyanate
CAS No.	104-12-1
Molecular Formula	C7H4ClNO
Molecular Weight	153.56 g/mol
Synonyms	p-Chlorophenyl isocyanate; 1-Chloro-4-isocyanatobenzene; 4-Chlorophenylcarbonyl imide; Isocyanic acid, 4-chlorophenyl ester; PCI; 4-CPI; NSC 406925
EINECS	203-176-6

Quality Control

Our 4-Chlorophenyl Isocyanate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including assay by titration and impurity profile analysis by GC/HPLC, to ensure high purity and consistency. Certificates of Analysis (COA) documenting all critical parameters are provided and available upon request, supporting compliance with global regulatory and research standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at 15-25°C. Due to its highly volatile and moisture-sensitive nature, containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent hydrolysis and polymerization. Keep away from strong bases, alcohols, amines, and sources of ignition.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC/Titration)	≥ 98.0%
Color (APHA)	≤ 50
Density at 20°C	~1.25 g/cm³
Water Content (KF)	≤ 0.1%

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