SMILES: C1C[C@H]2C[C@@H]1[C@H]3[C@@H]2C(=O)N(C3=O)CCCC[NH+]4CCN(CC4)C5=NC=CC=N5
Description: The molecule is an ammonium ion resulting from the addition of a proton to the piperazine nitrogen which is attached to the alkyl chain. The major species at pH 7.3. It is a conjugate acid of a tandospirone.