Description

4,4''-[Oxybis(Ethyleneoxy)]Bis[2-Hydroxybenzophenone] is a specialized organic compound belonging to the benzophenone class, valued for its unique molecular structure that incorporates ether and phenolic hydroxyl groups. This compound is a critical intermediate and functional additive, prized for its ability to impart specific chemical properties such as UV absorption and polymer chain extension. It is essential for manufacturers and formulators in the polymer, coatings, and specialty chemical industries seeking to enhance product performance and stability.

Application

• As a key light stabilizer and UV absorber in polymer formulations, including plastics, coatings, and adhesives.
• As a reactive intermediate or chain extender in the synthesis of high-performance polyesters, polyurethanes, and epoxy resins.
• In the production of specialty photoresists and electronic chemicals for the semiconductor industry.
• As a functional additive in personal care products, such as sunscreens, where UV-filtering properties are required.
• In pharmaceutical research as a building block for novel active pharmaceutical ingredients (APIs).
• For research and development in organic synthesis and material science laboratories.

Basic Information

Product Name	4,4''-[Oxybis(Ethyleneoxy)]Bis[2-Hydroxybenzophenone]
CAS No.	23421-22-9
Molecular Formula	C30H26O8
Molecular Weight	514.52 g/mol
Synonyms	2,2'-[Oxybis(2,1-ethanediyloxy)]bis[α-hydroxy-4-(oxo-κO)benzenemethanol]; 2,2'-[Oxybis(ethyleneoxy)]di-α,4-dihydroxybenzophenone; 4,4'-[Oxybis(ethylenoxy)]bis(2-hydroxybenzophenone); Bis(2-hydroxy-4-(2-hydroxyethoxy)benzophenone) ether; UV Absorber 23421-22-9; Light Stabilizer 23421-22-9
EINECS	Contact for details

Quality Control

Our 4,4''-[Oxybis(Ethyleneoxy)]Bis[2-Hydroxybenzophenone] is produced under a stringent quality management system. Every batch undergoes comprehensive analytical testing, including HPLC, IR, and NMR, to ensure high purity and consistent performance. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications. We support custom synthesis and can tailor purity grades to meet specific application requirements, from industrial to research standards.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product quality and stability. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Off-white to light yellow powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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