(2R,4R,Z)-2-(carboxymethyl)-5-(2-hydroxyethylidene);Potassium Clavulanate EP Impurity E;(2R,4R,5Z)-4-Carboxy-5-(2-hydroxyethylidene)-3-[[(2R,3Z,5R)-3-(2-hydroxyethylidene)-7-oxo-4-oxa-1-azabicyclo[3.2.0]hept-2-yl]carbonyl]-2-oxazolidineacetic Acid;PotassiuM Clavunate Impurity E;Clavulanic Acid DiMer IMpurity;Clavulanate EP Impurity E;Clavulanic Impurity E
