1,3,2-Dioxathiane, 5-ethyl-5-phenyl-, 2-oxide 1,3-Propanediol, 2-ethyl-2-phenyl-, cyclic sulfite (ester) 2-Ethyl-2-phenyl-1,3-propanediol cyclic sulfite (ester) 3670-89-1 BRN 1967478