Polymer-related chemicals

WPBG-140

Photo base generators

generated by photoirradiation, imidazolethe long wavelength region  absorption band

Plastics manufacturing

Photocurable

  • Exhibits absorption region in the vicinity of 350 nm.
  • Generates imidazole (m.p.=89-91°C, b.p.=256°C) by light irradiation
  • Has radical polymerization initiating ability.
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Chemical name 1-(anthraquinon-2-yl)ethyl imidazole-1-carboxylate
CAS RN® 1418139-51-1
Molecular weight 346.34

Physical characteristics

Color
Appearance
pale yellow
powder - mass
Melting point/freezing point 124℃
Solubilities water, acetone : slightly soluble.
NMP (N-methylpyrrolidone) : freely soluble.
methanol, PGMEA (1-methoxy-2-propyl acetate) : sparingly soluble.
TG-DTA weight loss from 166℃
Solubility (g/solv. 100 g)
  • NMP14
  • GBL11
  • PGMEA1
  • Acetone<0.5
  • Ethyl lactate5
  • PGME1
  • Methanol1
  • H2O<0.5

UV(0.02 mg/mL in CH3CN)

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Absorption maximum
253 nm(ε=61400) 254 nm(ε=61200) 365 nm(ε=390)

Related laws and regulations

TSCA Not Listed
EINECS Not Listed
REACH Not Listed