Photo base generators


Cas : 1228312-05-7

the long wavelength region  absorption band generated by photoirradiation, diethylamine excellent solubility

Plastics manufacturing


  • Light absorption in long-wavelength region, and has excellent solubility.
  • Shows high stability in different monomers.
  • Generates diethylamine (b.p. =55°C) of secondary amine by light irradiation.
  • Can be used as a sensitizer for WPBG-300 and WPBG-345.
Molecular formula
Chemical name 9-Anthrylmethyl N,N-diethylcarbamate
CAS RN® 1228312-05-7
Molecular weight 307.39

Physical characteristics

light yellow - yellow
crystals - powder
Melting point/freezing point 72-74℃
Solubilities water : insoluble.
acetone, methanol, toluene, acetonitrile, ethyl acetate, chloroform, hexane : soluble.
TG-DTA Weight loss starts at 202℃
Solubility (g/solv. 100 g)
  • NMP>50
  • GBL>50
  • PGMEA>50
  • Acetone>50
  • Ethyl lactate>50
  • PGME>50
  • Methanol10
  • H2O<0.5

UV(0.02 mg/mL in CH3CN)

Absorption spectrum of WPBG-018

Absorption maximum
248 nm(ε=57000) 254 nm(ε=49400) 365 nm(ε=8800)

Related laws and regulations

TSCA Not Listed
EINECS Not Listed
REACH Not Listed