1,3-Dioxolane-2-propanoic acid, 2-(phenylmethyl)-, 2-hydroxyethyl ester 2-Hydroxyethyl 2-benzyl-1,3-dioxolane-2-propionate 68083-99-8 EINECS 268-413-0 Hydroxyethyl 4-ethylenedioxy-5-phenylvalerate Hydroxyethyl-4-ethylenedioxy-5-phenylvalerate