Photoinitiator DETX/2,4-Diethylthioxanthone/CAS Number 82799-44-8

Photoinitiator DETX
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Technical Data Sheet (TDS)

Product Name

Photoinitiator DETX

Chemical Name

2,4-Diethylthioxanthone

CAS Number

82799-44-8

Molecular Formula

C₁₇H₁₆OS

Molecular Weight

268.37 g/mol

Physical & Chemical Properties

ItemSpecification
AppearanceYellow crystalline solid
Purity≥ 98%
Density1.178 g/cm³
Volatile Content (max)0.2%
Flash Point237.3 °C

Product Description

Photoinitiator DETX (2,4-Diethylthioxanthone) is a highly efficient Type II photoinitiator used in UV-curable systems. It exhibits strong absorption in the near-UV and visible light region, making it particularly suitable for pigmented and thick-film formulations. DETX is commonly used in combination with amine synergists to enhance curing speed and depth.

Applications

  • UV-curable inks

  • UV coatings

  • UV adhesives

  • Printing inks (offset, screen, flexo)

  • Pigmented and colored UV systems

Advantages

  • Excellent light absorption efficiency

  • Good compatibility with various resins

  • Effective curing in thick and pigmented formulations

  • High thermal stability