1,2-Di-N-morpholinylethane 1,2-Dimorpholinoethane 1723-94-0 4,4'-(Ethane-1,2-diyl)bismorpholine 4,4'-Ethylenedimorpholine EINECS 217-026-5 Morpholine, 4,4'-(1,2-ethanediyl)bis- Morpholine, 4,4'-ethylenedi- NSC 4514