Description

4,4'-Oxybis(Benzoyl Chloride) is a high-purity aromatic diacid chloride monomer of significant industrial importance. This compound serves as a critical building block for the synthesis of advanced polymers and specialty chemicals, enabling enhanced material properties. It is primarily sought by manufacturers in the polymer, pharmaceutical, and agrochemical sectors for producing high-performance polyamides, polyesters, and active pharmaceutical ingredients (APIs).

Application

• Polymer Synthesis: A key monomer for producing high-performance engineering plastics, including polyamides (nylons) and polyesters, offering excellent thermal stability and mechanical strength.
• Pharmaceutical Intermediates: Used in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs), particularly those requiring a rigid, aromatic backbone.
• Agrochemical Production: Serves as a precursor in the manufacture of herbicides, pesticides, and plant growth regulators.
• Liquid Crystal Polymers (LCPs): An essential component in the production of LCPs used in electronics, displays, and high-temperature applications.
• Crosslinking Agent: Employed in epoxy and other resin systems to improve crosslink density, chemical resistance, and thermal properties.
• Specialty Dyes and Pigments: Acts as an intermediate in the synthesis of high-value, color-fast organic dyes and pigments.
• Polymer Modification: Used to introduce aromatic ether and carbonyl functionalities into polymer chains to modify solubility and performance.
• Research & Development: A valuable reagent in organic synthesis and material science research for creating novel compounds and materials.

Basic Information

Product Name	4,4'-Oxybis(Benzoyl Chloride)
CAS No.	7158-32-9
Molecular Formula	C14H8Cl2O3
Molecular Weight	295.12 g/mol
Synonyms	4,4'-Oxybis(benzoyl chloride); Bis(4-carboxyphenyl) Ether Dichloride; 4,4'-Carbonylbis(benzoyl chloride); 4,4'-Oxybisbenzoic Acid Dichloride; 4,4'-Dichlorocarbonyl Diphenyl Ether; 4,4'-(Oxybis(benzoyl chloride)); 4,4'-Oxybis(benzoic acid chloride); 4,4'-Oxybis(benzoyl chloride) (OBBC)
EINECS	Contact for details

Quality Control

Our 4,4'-Oxybis(Benzoyl Chloride) is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure it meets the high-purity standards required for sensitive applications like pharmaceutical synthesis and advanced polymer production. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, 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) to prevent hydrolysis. Keep away from strong bases, alcohols, and water.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.5%
Melting Point	118 - 122 °C
Acid Chloride Content	≥ 99.0%
Free Acid (as Benzoic Acid)	≤ 0.5%
Water Content (KF)	≤ 0.1%

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