Hydroxyethyl vinyl ether764-48-732 % similar Diethylene glycol-ε-caprolactone polymer36890-68-331 % similar 1-[2(2-Hydroxyethoxy)ethyl]piperazine dihydrochloride85293-16-931 % similar 3-Ethoxy-1-propanol111-35-331 % similar Polyethylene glycol monooleyl ether9004-98-230 % similar