Based on the SMILES O=c1cc[nH]nc1, the molecule is permeable through the membrane separating circulating blood and extracellular brain fluid.
Based on the {SMILES__description} {#representation |!}{SMILES#}, the molecule is {p_np#not &NULL}{p_np__names__adjective}.
O=c1cc[nH]nc1
O=c1cc[nH]nc1
1H-pyridazin-4-one