1880 H. E. Armstrong & C. E. Groves Miller's Elements Chem. (ed. 5) III. 897 The formation of the ethoxy salt shows that..the OC_nH_2n+1 group of the oxalate may remain intact and only the CO group be affected.

1922 Jrnl. Pharmacol. & Exper. Therapeutics 19 251 There was no evidence of any superiority of ethoxy compounds over the corresponding hydroxy compounds.

1949 R. W. Schwartz & J. W. Perry Surface Active Agents I. xvi. 392 The X substituent, methyl or ethyl, had little effect on the wetting power, but methoxy or ethoxy substituents in the nucleus exerted a favorable effect.

2011 Antiviral Res. 92 37/2 The ethoxy group has been removed or substituted by other functional groups.