the data on the study of the ph dependence of the penicillinase-catalysed hydrolysis of beta-lactam antibiotics were used for estimation of the ionization constants of the products of the enzymatic hydrolysis of the beta-lactam ring in the molecules of azlocillin , carfecillin , benzylpenicillin , cephalothin and 7-padca .
C0026458
beta-lactam antibiotics
C0282215
beta-lactam