CAS No:N/A||Chemical Formula:C25H29N9O9S2 ||Molecular Weight:663.68100||Exact Mass:663.15296 ||2-(carboxy(2-(4-ethyl-2,3-dioxopiperazine-1-carboxamido)-2-(4-hydroxyphenyl)acetamido)methyl)-5-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-3,6-dihydro-2H-1,3-thiazine-4-carboxylic acid