acide butanoïque [ acide n-butanoïque | acide butyrique | acide n-butyrique | acide éthylacétique | acide butyrique normal | acide propylformique ]
butanoic acid [ n-butanoic acid | butyric acid | n-butyric acid | ethylacetic acid | normal butyric acid | propylformic acid | ethyl acetic acid ]