3-(-Methoxyphenyl)glycidic acid methylester 42245-42-1 EINECS 255-735-1 Methyl 3-(p-methoxyphenyl)-2,3-epoxypropionate Methyl 3-(p-methoxyphenyl)oxirane-2-carboxylate Oxiranecarboxylic acid, 3-(4-methoxyphenyl)-, methyl ester