potassium clavulanate and its Impurities
A potassium salt of Clavulanic acid which is a β-lactam antibiotic drug. Potassium Clavulanate belongs to penicillin group of antibacterial drugs and it is used to treat infections caused by beta-lactamase producing organisms. Reference standards of Potassium Clavulanate API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


Potassium Clavulanate - Impurity E
(2R,4R,5Z)-2-(Carboxymethyl)-5-(2-hydroxyethylidene)-3-[[(2R,3Z,5R)-3-(2-hydroxyethylidene)-7-oxo-4-oxa-1-azabibyclo[3.2.0]hept-2-yl]carbonyl]oxazolidine-4-carboxylic Acid
Catalogue No.:PA 16 88050
CAS :
1260617-10-4
Molecular Formula : C16H18N2O10
Molecular Weight : 398.32


4-(((R)-1-Carboxy-1-(2,5-dioxopyrrolidin-1-yl)-2-(4-hydroxyphenyl)ethyl)((S)-1-carboxy-2-(4-hydroxyphenyl)ethyl)amino)-4-oxobutanoic acid
4-(((R)-1-Carboxy-1-(2,5-dioxopyrrolidin-1-yl)-2-(4-hydroxyphenyl)ethyl)((S)-1-carboxy-2-(4-hydroxyphenyl)ethyl)amino)-4-oxobutanoic acid
Catalogue No.:PA 16 88520
CAS :
1260610-91-0
Molecular Formula : C26H26N2O11
Molecular Weight : 542.49