Keywords
penicillin,P,PCN,PEN,structure,structural formula,antibiotic,beta-lactam,β-lactam,line,bond,equal,stick,rod,line diagram,line bond,chemistry,double bond,double,line bone,single bond,structural formula,chirality,chiral center,stereochemistry,isomer,chiral,2021q2giconhackathon,giconhackathon