Synonyms: OPP 2; NK Ester 401; Kayarad OPP 2;Poly(oxy-1,2-ethanediyl),a-(1-oxo-2-propen-1-yl)-w-([1,1'-biphenyl]-2-yloxy)-;Polyethylene glycol o-phenylphenyl ether acrylate; Kayarad OPP 1;Poly(oxy-1,2-ethanediyl),a-(1-oxo-2-propenyl)-w-([1,1'-biphenyl]-2-yloxy)-(9CI); Kayarad OPP 1.5;