CAS No:73240-08-1||Chemical Formula:C23H23N5O8S||Molecular Weight:529.52400||Exact Mass:529.12673||N-((R)-2-(((5aR,6R)-1,7-dioxo-1,4,5a,6-tetrahydro-3H,7H-azeto[2,1-b]furo[3,4-d][1,3]thiazin-6-yl)amino)-1-(4-hydroxyphenyl)-2-oxoethyl)-4-ethyl-2,3-dioxopiperazine-1-carboxamide