QA661222

氨苄西林杂质 22

Ampicillin Impurity 22

别名：(2S,5R,6R)-6-((2R)-2-(2-ethylhexanamido)-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid