Description

4-Biphenylyl Isocyanate is a specialized aromatic isocyanate monomer, a key building block for synthesizing advanced polymers and fine chemicals. Its value lies in its ability to introduce the rigid biphenyl moiety into polymer backbones, enhancing thermal stability and mechanical properties. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and high-performance materials sectors seeking to develop novel products with tailored characteristics.

Application

• Pharmaceutical Intermediates: A critical precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a biphenyl core structure.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and pesticides where the biphenyl group contributes to biological activity and stability.
• Polymer & Resin Modification: Serves as a monomer or cross-linking agent in polyurethanes, polyureas, and other specialty polymers to improve heat resistance and rigidity.
• Liquid Crystal & OLED Materials: A valuable building block for creating charge-transport materials, host materials, and other components in electronic displays and optoelectronic devices.
• Chemical Research & Development: Employed in academic and industrial R&D for exploring new organic reactions and creating novel molecular architectures.
• Surface Coatings & Adhesives: Incorporated into formulations for high-performance coatings and adhesives that require enhanced durability and chemical resistance.

Basic Information

Product Name	4-Biphenylyl Isocyanate
CAS No.	92-95-5
Molecular Formula	C13H9NO
Molecular Weight	195.22 g/mol
Synonyms	p-Phenylphenyl isocyanate; 4-Isocyanatobiphenyl; Biphenyl-4-yl isocyanate; [1,1'-Biphenyl]-4-yl isocyanate; 4-Biphenyl isocyanate; p-Biphenylyl isocyanate; NSC 404083; 4-BPCI
EINECS	202-207-5

Quality Control

Our 4-Biphenylyl Isocyanate is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. We employ advanced analytical techniques, including HPLC, GC, and NMR, to verify identity and quantify impurities. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a 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 or argon) after opening to prevent degradation by moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	86 - 90 °C
Water Content (KF)	≤ 0.5%

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