Utshwala buyinhlanganisela ehlanganisa ama-athomu e-carbon, i-hydrogen, ne-oxygen.Iwuketshezi olungenambala olunephunga elihlukile kanye nokunambitheka, okuvame ukusetshenziswa eziphuzweni ezidakayo.Ifomula yamakhemikhali yotshwala yi-C2H5OH, futhi ikhiqizwa ngokuvutshelwa kukashukela nokusanhlamvu.