The molecule is a peptide anion obtained from N-acetyl-D-glucosaminyl-N-acetylmuramoyl-L-alanyl-D-glutamyl-6-carboxy-L-lysyl-D-alanine; major structure at pH 7.3. It is a conjugate base of a N-acetyl-D-glucosaminyl-N-acetylmuramoyl-L-alanyl-D-glutamyl-6-carboxy-L-lysyl-D-alanine.
(6S)-6-[[(4R)-4-[[(2S)-2-[[(2R)-2-[(3R,4R,5S,6R)-3-acetamido-5-[(2S,3R,4R,5S,6R)-3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-2-hydroxy-6-(hydroxymethyl)oxan-4-yl]oxypropanoyl]amino]propanoyl]amino]-4-carboxylatobutanoyl]amino]-2-azaniumyl-7-[[(1R)-1-carboxylatoethyl]amino]-7-oxoheptanoate