The SMILES O=C(CN1CCCC1=O)NNC(=O)CN1CCCC1=O represents a molecule that is identified as permeable through the blood-brain barrier.
The {SMILES__description} {SMILES#} represents a molecule that is {p_np#not&NULL}identified as {p_np__names__adjective}.
O=C(CN1CCCC1=O)NNC(=O)CN1CCCC1=O
O=C(CN1CCCC1=O)NNC(=O)CN1CCCC1=O
2-(2-oxopyrrolidin-1-yl)-N'-[2-(2-oxopyrrolidin-1-yl)acetyl]acetohydrazide