Tebipenem pivoxil161715-24-8100 % similar Tebipenem161715-21-567 % similar Meropenem96036-03-238 % similar Biapenem120410-24-437 % similar Meropenem trihydrate119478-56-736 % similar Doripenem148016-81-335 % similar Doripenem hydrate364622-82-234 % similar Ertapenem153832-46-333 % similar Ertapenem sodium153773-82-131 % similar Cefetamet pivoxil65243-33-631 % similar Cefetamet pivoxil hydrochloride111696-23-230 % similar