Amoxicillin EP Impurity J Catalogue A536310 M.W n 352.38 364.40 M.F (C15H18N3O5S)n. C16H18N3O5S Specifications FAQs (2S,5R,6R)-6-((2R)-2-(2-((R)-2-amino-2-(4-hydroxyphenyl)acetamido)-2-((4S)-4-carboxy-5,5-dimethylthiazolidin-2-yl)acetamido)-2-(4-hydroxyphenyl)acetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid