1 OEG 2,2'-oxydiacetic acid 1.000 2 VKC (2-hydroxyethoxy)acetic acid 0.889 3 1KA (2-hydroxyethoxy)acetaldehyde 0.778 4 8LD 2,2'-oxydi(ethyn-1-ol) 0.778 5 PEG Di(hydroxyethyl)ether 0.778