Figure 1. Chemical structure of cephalosporins

From

Spectroscopic Methods for Analysis of Cephalosporins in Pharmaceutical Formulations

Shazalia Mahmoud Ali, Abdalla A. Elbashir, Hassan Y. Aboul-Enein

World Journal of Analytical Chemistry. 2015, 3(1A), 21-32 doi:10.12691/wjac-3-1A-5