(6R,7R)-(Z)-2-(2-Amino-4-thiazolyl-2-(methoxyimino)acetamido)-3-(azidomethyl)-8-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid sodium salt 5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 7-(((2-amino-4-thiazolyl)(methoxyimino)acetyl)amino)-3-(azidomethyl)-8-oxo-, monosodium salt, (6R-((6alpha,7beta(Z))))- 72889-62-4 Ro 40-6890 Ro 406890