CAS No:N/A||Chemical Formula:C50H52N18O15S4||Molecular Weight:1273.317||Exact Mass:1272.27424||(6R,7R)-7-(2-(4-ethyl-2,3-dioxopiperazine-1-carboxamido)-2-(4-(((6R,7R)-7-(2-(4-ethyl-2,3-dioxopiperazine-1-carboxamido)-2-(4-hydroxyphenyl)acetamido)-3-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carbonyl)oxy)phenyl)acetamido)-3-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid