Description

4-Cyanophenyl Isocyanate is a versatile aromatic isocyanate monomer featuring a reactive isocyanate group and a cyano substituent. This bifunctional structure makes it a critical building block for synthesizing advanced polymers and fine chemicals with tailored properties. It is essential for R&D and production in the pharmaceutical, agrochemical, and specialty materials industries seeking to incorporate phenyl isocyanate functionality with enhanced polarity and reactivity.

Application

• Pharmaceutical Intermediates: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds containing urea or carbamate linkages.
• Agrochemical Synthesis: Used in manufacturing herbicides, fungicides, and pesticides where the cyanophenyl moiety imparts specific biological activity.
• Polymer Modification: Serves as a monomer or cross-linking agent for polyurethanes, polyureas, and other specialty polymers to enhance mechanical strength and chemical resistance.
• Liquid Crystal & OLED Materials: A valuable intermediate for creating advanced electronic and display materials requiring specific aromatic architectures.
• Chemical Research & Development: Employed in organic synthesis to introduce isocyanate functionality for further reactions with amines, alcohols, or other nucleophiles.
• Surface Coatings & Adhesives: Contributes to the formulation of high-performance coatings and adhesives with improved durability and adhesion properties.

Basic Information

Product Name	4-Cyanophenyl Isocyanate
CAS No.	40465-45-0
Molecular Formula	C8H4N2O
Molecular Weight	144.13 g/mol
Synonyms	p-Cyanophenyl isocyanate; 4-Isocyanatobenzonitrile; 1-Isocyanato-4-cyanobenzene; Benzonitrile, 4-isocyanato-; p-Isocyanatobenzonitrile; 4-CN-Ph-NCO; (4-Cyanophenyl)isocyanate
EINECS	254-904-4

Quality Control

Our 4-Cyanophenyl Isocyanate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by FT-IR and NMR, to ensure it meets the high standards required for industrial and research applications. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent degradation from moisture and polymerization.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%

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