O=c1c2ccccc2sc2cccc(NCCCN3CCN(CCCNc4cccc5sc6ccccc6c(=O)c45)CC3)c12
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?