Name: (4R,5R,6S)-3-[(3S,5S)-5-[(3-carboxyphenyl)carbamoyl]pyrrolidin-3-yl]sulfanyl-6-(1-hydroxyethyl)-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid; (Ertapenem) CAS No.: 153832-46-3 Molecular Formula: C22H25N3O7S Molecular Weight: 475.5 The Use: antibiotics