(8S,11S,Z)-5-(2-Aminothiazol-4-yl)-11-(3-guanidinopropyl)-2,2-dimethyl-6,9-dioxo-8-((S)-1-(sulfoamino)ethyl)-3-oxa-4,7,10-triazadodec-4-ene-1,12-dioic Acid Disodium Salt