The descriptors are grouped into clusters based on their correlations, indicating similarities in their influence on solubility (Figure ). For instance, such descriptors as density of CO2 and pressure in the system, as well as melting point and nAtomP (a constitutional descriptor representing the size of the longest conjugated system in the molecule), show the highest positive correlations with each other. This clustering highlights the interconnected nature of these features and their collective impact on solubility predictions.