Amoxicillin EP Impurity B

Chemical Name: (2S,5R,6R)-6-[[(2S)-2-Amino-2-(4-hydroxyphenyl)acetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid ( As per EP) ; (2S,5R,6R)-6-[(S)-2-Amino-2-(4-hydroxyphenyl)acetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid. (As per USP)

Synonym: Amoxicillin USP Related Compound B ; L-Amoxicillin