4,4'-Bis(diethylamino) benzophenone with CAS 90-93-7

4,4'-Bis(diethylamino) benzophenone with CAS 90-93-7 - Image 2

4,4′-Bis(diethylamino) benzophenone with CAS 90-93-7

CAS:90-93-7
Molecular Formula:C21H28N2O
Molecular Weight:324.46
Appearance:White powder
EINECS:202-025-4

Synonyms:4,4′-Bis(diethylamino)benzophenone;4,4-BIS(DIETHYLAMINO) BENZOPHENONE;4,4′-Bis(diethylamino)benzophenone98%;PI-EMK;UV Photoinitiator EMK / Photoinitiator EAB;Photoluminator EKK;Photoinitiator-EMK

What is 4,4′-Bis(diethylamino) benzophenone with CAS 90-93-7?

4,4′-Bis(diethylamino) benzophenone (CAS 90-93-7), also known as EMK Photoinitiator or Photoinitiator EMK, is a highly efficient ultraviolet (UV) photoinitiator. It is widely applied in UV-curable systems, including coatings, inks, adhesives, and electronics materials, offering excellent curing efficiency and stability for industrial-scale production.

Specification

ITEM	STANDARD
Appearance	White or light yellow powder
Purity (wt%, GC)	≥99.5
Moisture (wt%, K.F.)	≤0. 5
Insolubles（%）	≤0.05

Key Features

Strong UV absorption and high initiation efficiency.

Fast curing speed, improving production efficiency.

Stable performance under large-scale industrial use.

Compatible with acrylates and other UV-curable resin systems.

Main Applications

UV-Curable Coatings: Enhances hardness, gloss, scratch resistance, and durability of surfaces in wood coatings, plastic coatings, and industrial protective coatings.
UV-Curable Printing Inks: Provides rapid drying, high adhesion, and color stability for various printing processes, including offset, screen, and flexographic printing.

4,4'-Bis(diethylamino) benzophenone with CAS 90-93-7-application