Ethers, ether-alcohols, ether-phenols, ether-alcohol-phenols, alcohol peroxides, ether peroxides, acetal and hemiacetal peroxides, ketone peroxides (chemically defined or not), and their halogenated, sulphonated, nitrated or nitrosated derivatives

290911 Ethers; acyclic, and their halogenated, sulphonated, nitrated or nitrosated derivatives, diethyl ether 290919 Ethers; acyclic, and their halogenated, sulphonated, nitrated or nitrosated derivatives, other than diethyl ether 290920 Ethers; cyclanic, cyclenic or cycloterpenic and their halogenated, sulphonated, nitrated or nitrosated derivatives 290930 Ethers; aromatic, and their halogenated, sulphonated, nitrated or nitrosated derivatives 290941 Ether-alcohols and their halogenated, sulphonated, nitrated or nitrosated derivatives; 2,2-oxydiethanol (diethylene glycol, digol) 290943 Ether-alcohols and their halogenated, sulphonated, nitrated or nitrosated derivatives; monobutyl ethers of ethylene glycol or of diethylene glycol 290944 Ether-alcohols and their halogenated, sulphonated, nitrated or nitrosated derivatives; monoalkylethers of ethylene glycol or of diethylene glycol n.e.c. in heading no. 2909 290949 Ether-alcohols and their halogenated, sulphonated, nitrated or nitrosated derivatives; n.e.c. in item no. 2909.4 290950 Ether-phenols, ether-alcohol-phenols and their halogenated, sulphonated, nitrated or nitrosated derivatives 290960 Alcohol peroxides, ether peroxides, acetal and hemiacetal peroxides, ketone peroxides and their halogenated, sulphonated, nitrated or nitrosated derivatives