1,1-Dimethyl-1-sila-2,5,8,11,14-oxacyclotetradecane 1,3,6,9,12-Pentaoxa-2-silacyclotetradecane, 2,2-dimethyl- 2,2-Dimethyl-1,3,6,9,12-pentaoxa-2-silacyclotetradecane 70851-49-9 EINECS 274-934-4