Meropenem :
    Chemical Name : (4R,5S,6S)-3-[[(3S,5S)-5-[(D-imethylamino)carbonyl]-3-pyrrolidinyl]thio]-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[ 3 . 2 . 0 ]hept-2-ene-2-carboxylic acid
   CAS No. : 119478-56-7
   Molecular formula : C₁₇H₂₅N₃O₅S
   Molecular weight : 383.46
   Standard : USP28
   Structure formula: