CAS No.: 147103-94-4 Synonyms: (6 R ,7 R )-7-[( R )-2-Amino-2-(4-hydroxyphenyl)acetamido]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic acid Formula: C₁₆H₁₇N₃O₅S Formula Weight: 363.39 Linear Formula: C₁₆H₁₇N₃O₅S