O=S(=O)([O-])CCC[n+]1c(/C=C\Nc2ccccc2)oc2ccc(-c3ccccc3)cc21
In analogy to the rule of five, it has been proposed that ideal fragments should follow the rule of three, in which the molecular weight of a fragment is <300, the c LogP is ≤3, the number of hydrogen bond donors is ≤3 and the number of hydrogen bond acceptors is ≤3. The molecule meets rule of three or not?