Description

2-Propenoic Acid, 2-Methyl-, [1,1'-Biphenyl]-4,4'-Diylbis(Oxy-2,1-Ethanediyl) Ester (9Ci) is a specialized difunctional acrylate monomer, a high-purity chemical building block essential for advanced polymer synthesis. Its molecular structure, featuring a rigid biphenyl core and two reactive methacrylate termini, makes it a critical component for creating materials with enhanced thermal stability, mechanical strength, and optical clarity. This compound is primarily sought by R&D chemists and formulators in the photoresist, optical adhesive, high-performance coating, and specialty polymer industries.

Application

• Photoresist & Photopolymer Formulations: Acts as a key cross-linking monomer in UV-curable resins for electronics (PCB manufacturing) and advanced 3D printing (stereolithography).
• Optical Adhesives & Lenses: Used to formulate high-refractive-index, transparent adhesives and coatings for optical components, displays, and fiber optics.
• High-Performance Coatings: Imparts durability, chemical resistance, and weatherability to industrial, automotive, and protective coatings.
• Dental & Biomedical Polymers: Serves as a comonomer in the synthesis of biocompatible polymers for dental composites and medical devices.
• Specialty Acrylic Polymers: A building block for engineering plastics and impact modifiers requiring high glass transition temperatures (Tg).
• Advanced Composite Materials: Incorporated into matrix resins for fiber-reinforced composites in aerospace and automotive applications.

Basic Information

Product Name	2-Propenoic Acid, 2-Methyl-, [1,1'-Biphenyl]-4,4'-Diylbis(Oxy-2,1-Ethanediyl) Ester (9Ci)
CAS No.	90549-11-4
Molecular Formula	C24H26O6
Molecular Weight	410.46 g/mol
Synonyms	4,4'-Biphenol Dimethacrylate; Biphenol A Dimethacrylate; 4,4'-Biphenyldiol Dimethacrylate; 4,4'-Dihydroxybiphenyl Dimethacrylate; 2-Methyl-2-propenoic Acid 4,4'-(1,1'-Biphenyl-4,4'-Diylbis(oxy))bis(2,1-ethanediyl) Ester; Biphenyl-4,4'-diyl bis(2-(methacryloyloxy)ethyl) ether; BPDMA; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our production of this high-purity monomer adheres to stringent quality protocols to ensure batch-to-batch consistency and reliability for sensitive applications like photopolymers. Each lot is characterized using advanced analytical techniques including HPLC, GC, and NMR to confirm identity, purity, and the absence of critical impurities such as polymerization inhibitors or residual solvents. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C/59-77°F). This product is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). For long-term storage, consider packaging under an inert gas (nitrogen or argon) and monitor for any signs of polymerization. Keep away from heat, sparks, open flames, and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Residual Solvent (GC)	Meets ICH guidelines
Inhibitor Content (MEHQ)	100 - 200 ppm (typical)

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