SMILES: C1[C@@H](NC[C@@H]([NH2+]1)CC2=CC=C(C=C2)O)CC3=CC=C(C=C3)O
Description: The molecule is an ammonium ion derivative resulting from the protonation of one of the amino groups of (S,S)-2,5-di-(p-hydroxybenzyl)piperazine. The major species at pH 7.3. It is a conjugate acid of a (S,S)-2,5-di-(p-hydroxybenzyl)piperazine.