Description

Cyanic Acid, [1,1'-Biphenyl]-4,4'-Diyl Ester is a specialized organic compound belonging to the class of cyanate esters, characterized by its biphenyl core structure. This compound serves as a critical high-performance monomer and cross-linking agent in the synthesis of advanced polymeric materials. It is primarily sought by manufacturers in the electronics, aerospace, and specialty coatings industries for applications demanding exceptional thermal stability, low dielectric constant, and superior mechanical properties.

Application

• High-Temperature Polymer Matrix: A key monomer for producing polycyanurate and polyimide resins used in aerospace composites and circuit board laminates.
• Electronic Encapsulation & Underfill: Used in formulations for encapsulating microelectronic components due to its excellent dielectric properties and moisture resistance.
• Specialty Adhesives & Coatings: Imparts high thermal and chemical resistance to adhesives for demanding industrial environments and protective coatings.
• Flame-Retardant Additive: Acts as a reactive component in flame-retardant polymer systems, contributing to char formation and reduced flammability.
• Chemical Intermediate: Serves as a building block in organic synthesis for pharmaceuticals and agrochemicals, leveraging its reactive cyanate groups.
• Fiber-Reinforced Composites: Utilized as a matrix resin precursor for manufacturing high-strength, lightweight composite parts in automotive and sporting goods.

Basic Information

Product Name	Cyanic Acid, [1,1'-Biphenyl]-4,4'-Diyl Ester
CAS No.	1219-14-3
Molecular Formula	C14H8N2O2
Molecular Weight	236.23 g/mol
Synonyms	4,4'-Biphenyldiol Dicyanate; 4,4'-Dicyanatobiphenyl; Biphenyl-4,4'-diyl dicyanate; 4,4'-Biphenylene Dicyanate; Dicyanate Ester of 4,4'-Biphenol; Cyanato-terminated Biphenyl; BP-DICY; [1,1'-Biphenyl]-4,4'-diyl bis(cyanate)
EINECS	214-950-7

Quality Control

Every batch of Cyanic Acid, [1,1'-Biphenyl]-4,4'-Diyl Ester is manufactured under a strict quality management system. We perform comprehensive analytical testing, including HPLC for purity and assay, IR and NMR for structural identification, and Karl Fischer titration for moisture content, to ensure the product meets precise customer specifications. Certificates of Analysis (COA) documenting all critical parameters are provided with each shipment.

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). This material is moisture-sensitive (hygroscopic) and should be kept under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent hydrolysis and polymerization. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Moisture (Karl Fischer)	≤ 0.5%
Residual Chloride	≤ 100 ppm

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