poly(ethylene glycol) heptacosaethylene glycol 1206.718 1207.43440 3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60,63,66,69,72,75,78-hexacosaoxaoctacontane-1,80-diol Beilstein:7564183 C54H110O28 CHEBI:46795 InChI=1S/C54H110O28/c55-1-3-57-5-7-59-9-11-61-13-15-63-17-19-65-21-23-67-25-27-69-29-31-71-33-35-73-37-39-75-41-43-77-45-47-79-49-51-81-53-54-82-52-50-80-48-46-78-44-42-76-40-38-74-36-34-72-32-30-70-28-26-68-24-22-66-20-18-64-16-14-62-12-10-60-8-6-58-4-2-56/h55-56H,1-54H2 OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO ROBWXMBKZRGUGK-UHFFFAOYSA-N chebi_ontology