The MAP-Elites algorithm has been applied in the context of molecular optimization by , where the authors present an extension for high-dimensional feature space, here we limit to low dimensions. We implement two generic divisions of the molecular search space, firstly a two dimensional approach that bins molecules according to molecular weight and calculated log P (calculated using RDKit), and secondly according to species, a categorical concept we introduce which serializes the component gene types of a molecule. These two approaches are referred to as FragGTi and FragGTic, respectively.