Product name: Aztreonam 
Synonyms: [2S-[2α,3β(z)]]-2-[[[1-(2-amino-4-thiazolyl)-2-[(2-methyl-4-oxo-1-sulfo-3-azetidinyl) amino]-2-oxoethyli-dene]amino]oxy]-2-methylpropionic acid
Molecular Formula : C₁₃H₁₇N₅O₈S₂ 
Standard: USP
CAS NO: 78110-38-0