CAS No:N/A||Chemical Formula:C22H22N8O9S3 ||Molecular Weight:638.64500||Exact Mass:638.06719||(6R,7R)-3-[(acetyloxy)methyl]-7-[[(2Z)-2-[2-[[(2Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetyl]amino]thiazol-4-yl]-2-(methoxyimino)acetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid