59446-81-0 EINECS 261-765-6 Sodium (2S-(2alpha,5alpha,6beta(S*)))-6-((aminocyclohexa-1,4-dien-1-ylacetyl)amino)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylate