2,2'-Dimorpholinodiethyl ether 2,2'-Dimorpholinyldiethyl ether 4,4'-(Oxydiethylene)bis(morpholine) 6425-39-4 Bis(morpholinoethyl)ether Dimorpholinodiethyl ether EINECS 229-194-7 Morpholine, 4,4'-(oxydi-2,1-ethanediyl)bis- Morpholine, 4,4'-(oxydiethylene)di- NSC 28749