Penicilloic Acid of Cloxacillin ; (4S)-2-[Carboxy[[[3-(2-chlorophenyl)-5-methylisoxazol-4-yl]carbonyl]amino] methyl]-5,5-dimethylthiazolidine-4-carboxylic acid ;

Penilloic Acid of Cloxacillin ; (2RS,4S)-2-[[[[3-(2-Chlorophenyl)-5-methylisoxazol-4-yl]carbonyl]amino] methyl]-5,5-dimethylthiazolidine-4-carboxylic acid ;

Amoxicillin EP Impurity A ; Ampicillin EP Impurity A ; 6-Aminopenicillanic Acid (6-APA) ; (2S,5R,6R)-6-Amino-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid ; CAS # 551-16-6 ;

Cloxacillin USP RC D ; 3-(2-Chlorophenyl)-5-methylisoxazole-4-carboxylic acid ; CAS # 23598-72-3 ;

6-APA Cloxacillin Amide ; (2S,5R,6R)-6-[[[(2S,5R,6R)-6-[[[3-(2-Chlorophenyl)-5-methylisoxazol-4-yl] carbonyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]hept-2-yl] carbonyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic a

Sodium (2S,5R,6R)-6-[[[3-(2-chlorophenyl)-5-methylisoxazol-4-yl]carbonyl] amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate monohydrate ; CAS # 7081-44-9 ;