1,1'-Oxybisheptane 4-01-00-01733 (Beilstein Handbook Reference) 629-64-1 BRN 1742678 Di-n-heptyl ether Diheptyl ether EINECS 211-100-0 Ether, di-n-heptyl- Ether, diheptyl HEPTYL ETHER Heptane, 1,1'-oxybis- NSC 97274