CAS No:86329-79-5||Chemical Formula:C20H18N6Na2O7S4||Molecular Weight:628.61854||Exact Mass:627.99152||sodium (6R,7R)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-3-(((5-(carboxylatomethyl)-4-methylthiazol-2-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate