Description

4,4'-Bis(Diethylamino) Benzophenone is a specialized aromatic ketone derivative, recognized for its role as a key intermediate and photoinitiator. This compound matters for its ability to efficiently generate free radicals upon exposure to UV light, initiating polymerization reactions. Industries that need it include manufacturers of advanced polymers, specialty coatings, and photoresists for electronics.

Application

• UV-Curable Coatings & Inks: Acts as a highly efficient photoinitiator for fast-curing, solvent-free surface finishes.
• Photopolymerization: Serves as a free radical generator in the production of acrylic resins and other polymers.
• Electronics Manufacturing: Used in the formulation of photoresists for printed circuit boards (PCBs) and microelectronics.
• Adhesive Formulations: Enables rapid curing in UV-activated industrial and optical adhesives.
• Organic Synthesis: Functions as a versatile building block for synthesizing more complex dyes and functional materials.
• Research & Development: Employed in academic and industrial labs studying photochemistry and polymer science.

Basic Information

Product Name	4,4'-Bis(Diethylamino) Benzophenone
CAS No.	90-93-7
Molecular Formula	C21H28N2O
Molecular Weight	324.46 g/mol
Synonyms	4,4'-Bis(N,N-diethylamino)benzophenone; Bis(4-diethylaminophenyl)methanone; DEAB; Ethyl 2-Cyano-3,3-diphenylacrylate; UV Photoinitiator DEAB; p,p'-Bis(diethylamino)benzophenone; 2-Propenoic acid, 2-cyano-3,3-diphenyl-, ethyl ester (related ester); Light Sensitizer DEAB
EINECS	202-027-5

Quality Control

Our 4,4'-Bis(Diethylamino) Benzophenone is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets precise specifications for photoinitiator applications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials. Due to its light-sensitive nature, handling should be conducted under subdued lighting or amber glass containers where prolonged exposure is expected.

Specification

Item	Specification
Appearance	Yellow to greenish-yellow crystalline powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 98.0%
Melting Point	95°C - 99°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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