2909: Ether, ether-alc... nes & their halogenatd, sulphonatd, nitratd... de

290911: Diethyl ether 290919: Acyclic ethers nes; derivatives of acyclic ethers 290920: Cyclanic, cyclenic or cycloterpenic ethers and their derivatives 290930: Aromatic ethers and their derivatives 290941: 2, 2'-oxydiethanol(diethylene glycol) 290942: Monomethyl ethers of ethylene glycol or of diethylene glycol 290943: Monobutyl ethers of ethylene glycol or of diethylene glycol 290944: Monoalkylethers of ethylene glycol or of diethylene glycol, nes 290949: Ether-alcohols nes; derivatives of ether-alcohols 290950: Ether-phenols, ether-alcohol-phenols and their derivatives 290960: Alcohol peroxides, ether peroxides, ketone peroxides & their derivati 2909: Ether, ether-alc... nes & their halogenatd, sulphonatd, nitratd... de