The theoretical solubility parameters were calculated by group contribution methods (GCM) from Hoftyzer Van-Krevelen's (HnV) and Yamamoto Molecular break method (YMB) by commercially available HSPiP software (5 th edition, version 5.0.05). In case of GCM (HnV), each functional or structural group in a compound contribute towards certain molar attractive force and hydrogen bonding energy. In contrast to one dimensional Hildebrand solubility parameters, the Hansen solubility parameters (HSPs) divide the total solubility parameter (δT) into three individual components arising from dispersion (δd), polar (δp) and hydrogen bonding contributions (δh). The δd, δp and δh can be calculated by HnV method by using the following equations: