The molecule is a peptide anion that is the conjugate base of vancomycin aglycone and the major microspecies at pH 7.3 (according to Marvin v 6.2.0.). It is a peptide anion and a phenolate anion. It is a conjugate base of a vancomycin aglycone and a vancomycin aglycone zwitterion.
(1S,2R,18R,19R,22S,25R,28R,40S)-22-(2-amino-2-oxoethyl)-5,15-dichloro-2,18,32,35,37-pentahydroxy-19-[[(2R)-4-methyl-2-(methylazaniumyl)pentanoyl]amino]-48-oxido-20,23,26,42,44-pentaoxo-7,13-dioxa-21,24,27,41,43-pentazaoctacyclo[26.14.2.23,6.214,17.18,12.129,33.010,25.034,39]pentaconta-3,5,8(48),9,11,14,16,29(45),30,32,34(39),35,37,46,49-pentadecaene-40-carboxylate