CAS No:N/A ||Chemical Formula:C18H18N4O5S2 ||Molecular Weight:434.48500 ||Exact Mass:434.07186||(6R,7R)-7-((6R,7R)-7-amino-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid