O=C(O)CN(CCNC(=O)OCC1c2ccccc2-c2ccccc21)CCNC(=O)OCC1c2ccccc2-c2ccccc21
For non-ionizable compounds Log P = Log D throughout pH range, whereas for ionizable compounds Log D takes into account the partition of both ionized and non-ionized forms. What is the negative log D of this molecule?