Chemical Name: (4S,4'S)-2,2'-{(1R,7R,13R)-1-Amino-14-[(2S,5R,6R)-2-carboxy-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptan-6-ylamino]-2,5,8,11,14-pentaoxo-1,7,13-triphenyl-3,6,9,12-tetraazatetradecane-4,10-diyl}bis(5,5-dimethylthiazolidine-4-carboxylic acid) Trisodium salt (as per USP)