Description

4,4'-Carbonylbis(Benzoic Acid Methyl) Ester is a high-purity organic compound that serves as a critical building block in advanced chemical synthesis. This diester is valued for its symmetrical aromatic structure and carbonyl functionality, which make it a versatile intermediate for creating polymers, liquid crystals, and pharmaceutical agents. It is essential for R&D laboratories and industrial manufacturers in the specialty chemicals, advanced materials, and life sciences sectors seeking reliable, high-quality intermediates.

Application

• Polymer & Resin Synthesis: A key monomer for producing high-performance polyesters, polyamides, and engineering plastics with enhanced thermal stability.
• Liquid Crystal Materials: Serves as a core intermediate in the manufacture of liquid crystal compounds for display technologies (LCDs).
• Pharmaceutical Intermediates: Used in the synthesis of active pharmaceutical ingredients (APIs) and other complex organic molecules.
• Organic Synthesis & Research: A valuable building block in academic and industrial R&D for constructing complex aromatic systems and functional materials.
• Cross-linking Agent: Can be utilized in formulations requiring chemical cross-linking to improve material properties like hardness and chemical resistance.
• Specialty Chemical Production: Employed in the synthesis of dyes, pigments, and other performance chemicals.

Basic Information

Product Name	4,4'-Carbonylbis(Benzoic Acid Methyl) Ester
CAS No.	1233-73-4
Molecular Formula	C17H14O5
Molecular Weight	298.29 g/mol
Synonyms	4,4'-Carbonylbis(methyl benzoate); Methyl 4,4'-carbonylbisbenzoate; 4,4'-Carbonylbis(benzoic acid) dimethyl ester; 4,4'-Carbonyldibenzoic Acid Dimethyl Ester; 4,4'-Oxydibenzoic Acid Dimethyl Ester (common misnomer); Dimethyl 4,4'-carbonyldibenzoate; Bis(4-(methoxycarbonyl)phenyl)methanone; CAS 1233-73-4
EINECS	214-967-9

Quality Control

Our 4,4'-Carbonylbis(Benzoic Acid Methyl) Ester is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistent performance. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and heat sources.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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