34205-43-1 Diethyl(2-(2-methoxyphenoxy)-2-oxoethyl)ammonium (2S-(2alpha,5alpha,6beta(S*)))-6-((aminophenylacetyl)amino)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylate EINECS 251-881-5