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2-Methyl-1-[4-(methylthio) phenyl]-2-morpholino propan-1-one is a type I photoinitiator primarily used in pigmented systems. It is oftentimes used with PL-ITX as a sensitizer to enhance the curing efficiency in inks. It is soluble in most monomers, oligomers and pre-polymers but insoluble in H2O.
Unit of Measure

Typical Applications

N/A Printing inks such as inkjet, flexo, screen, litho and dry offset, electronics & adhesives.

Typical Properties


N/A PL Industries

Performance Properties

N/A Excellent through cure Good in pigmented systems


N/A Light beige powder

Chemical Class

N/A α-aminoketone

Molecular Formula

N/A C15H21NO2S

Molecular Weight

N/A 279.4

Melting Point

N/A 73 to 76 ºC163 to 169 ºF

Boiling Point

N/A >250 ºC

Specific Gravity

N/A 1.19


N/A Strong, characteristic

Abs. Peaks

N/A 230 304

Usage Levels

N/A 0.3 to 5 %