Photo cationic initiators


CAS : 477602-76-9

Physical characteristics

  • Generates HPF6
  • Does not include harmful heavy metals.
  • Hardly colors at the time of epoxy curing.
Molecular formula
Chemical name Bis[4-n-alkyl(C10~13)phenyl]iodonium Hexafluorophosphate
CAS RN® 477602-76-9(n=12)
Molecular weight 762.71(n=12)

Physical characteristics

Color light brown - reddish brown clear
Appearance liquid
Melting point/freezing point No data available


water : insoluble.
ethanol,acetone : miscible.


Absorption spectrum of WPI-113
※When used in combination with a sensitizer, it shows photosensitivity even in the long wavelength region.


PGMEA >50%
Ethyl acetate >50%
Acetone >50%
Methanol >50%
H2O Insoluble

[Unit: : w.t/100mL,20℃]※These are values of single unit of compound, but not those in a solution state.

Related laws and regulations

TSCA Not Listed
EINECS Not Listed
REACH Not Listed