Based on the SMILES representation Cn1c(=O)c2[nH]cnc2n(C)c1=O.Cn1c(=O)c2[nH]cnc2n(C)c1=O.NCCN, the molecule is not permeable through the blood-brain barrier.
Based on the {SMILES__description} {#representation |!}{SMILES#}, the molecule is {p_np#not &NULL}{p_np__names__adjective}.
1,3-dimethyl-7H-purine-2,6-dione;ethane-1,2-diamine