101226-62-4 3,6,9,12,15,18,21,24-Octaoxahexatriacontan-1-ol 3055-98-9 81208-94-8 C-12-E-8 Octaethyleneglycol monododecyl ether Octaethyleneglycol-dodecylmonoether dodecyloctaethyleneglycol monoether n-Dodecyl octaethylene glycol monoether