ethyl 2-benzyl-1,3-dioxolane-2-propionate 1,3-Dioxolane-2-propanoic acid, 2-(phenylmethyl)-, ethyl ester 2-(Phenylmethyl)-1,3-dioxolane-2-propionic acid ethyl ester 2-Benzyl-1,3-dioxolane-2-propionic acid ethyl ester Einecs 243-803-3 Ethyl 4-ethylenedioxy-5-phenylvalerate Ethyl-4-ethylenedioxy-5-phenyl valerate