166901-45-7

Ertapenem Impurity M (USP) Meropenem Impurity B( a dimer) Meropenem Trihydrate Impurity B Meropenem Impurity 2(Meropenem EP Impurity B) (4R,5S,6S)-3-[(3S,5S)-1-[(2S,3R)-2-[(2S,3R)-5-Carboxy-4-[(3S,5S)-5-(dimethylcarbamoyl)pyrrolidin-3-yl]sulfanyl-3-methyl-2,3-dihydro-1H-pyrrol-2-yl]-3-hydroxybutanoyl]-5-(dimethylcarbamoyl)pyrrolidin-3-yl]sulfanyl-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-a 1-Azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid, 3-[[1-[2-[5-carboxy-4-[[5-[(dimethylamino)carbonyl]-3-pyrrolidinyl]thio]-2,3-dihydro-3-methyl-1H-pyrrol-2-yl]-3-hydroxy-1-oxobutyl]-5-[(dimethylamino)carbonyl]-3-pyrrolidinyl]thio]-6-(1-hydroxyethyl)-4-methyl-7-oxo-, [4R-[3[1[2S*[2S*,3R*,4(3S*,5S*)],3...