CAS No:N/A||Chemical Formula:C26H26N4O7S||Molecular Weight:538.57500||Exact Mass:538.15222||(R)-2-((6R,7R)-7-((R)-2-amino-2-(4-hydroxyphenyl)acetamido)-8-oxo-3-((Z)-prop-1-en-1-yl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxamido)-2-(4-hydroxyphenyl)acetic acid