Description

4,4'-Diisocyano-Biphenyl is a high-purity organic compound serving as a critical building block in advanced materials synthesis. Its value lies in its dual isocyanate functional groups, which enable it to act as a versatile cross-linking agent and monomer for creating polymers with tailored properties. This product is essential for researchers and manufacturers in the fields of specialty polymers, liquid crystals, and pharmaceutical intermediates, where precise molecular architecture is paramount.

Application

• Polymer Synthesis: A key monomer for producing polyurethanes, polyureas, and other specialty polymers requiring high thermal and chemical stability.
• Liquid Crystal Materials: Used in the synthesis of diisocyanate-based mesogens for advanced display technologies.
• Pharmaceutical Intermediates: Serves as a precursor in the synthesis of complex organic molecules for active pharmaceutical ingredients (APIs).
• Cross-linking Agent: Imparts rigidity and enhances mechanical properties in coatings, adhesives, and elastomers.
• Organic Synthesis: A valuable reagent for constructing biphenyl-based frameworks in medicinal and materials chemistry research.
• Advanced Material Research: Investigated for use in metal-organic frameworks (MOFs) and other porous coordination polymers.

Basic Information

Product Name	4,4'-Diisocyano-Biphenyl
CAS No.	952-28-3
Molecular Formula	C14H8N2O2
Molecular Weight	236.23 g/mol
Synonyms	4,4'-Diisocyanobiphenyl; Biphenyl-4,4'-diisocyanate; 4,4'-Biphenyldiisocyanate; p,p'-Biphenyldiisocyanate; 4,4'-Diosocyanobiphenyl; [1,1'-Biphenyl]-4,4'-diyl diisocyanate; NSC 5111; BPDI
EINECS	Contact for details

Quality Control

Every batch of 4,4'-Diisocyano-Biphenyl is produced and tested under a strict quality management system to ensure consistency and reliability for your critical applications. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) are available upon request, detailing purity, identity, and impurity profiles.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation from moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (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.