Table 1 Hoy solubility parameters of enzalutamide and select cellulose-based polymers.
Compound | Total solubility parameter (δt) (J1/2 cm−2/3) | Polar solubility parameter (δp) (J1/2 cm−2/3) | Hydrogen bonding solubility parameter (δh) (J1/2 cm−2/3) | Dispersive solubility parameter (δd) (J1/2 cm−2/3) | Aqueous solubility (mg/mL) |
---|---|---|---|---|---|
Enzalutamide | 31.4 | 4.3 | 15.2 | 27.1 | 0.042a |
HPMCAS-MF | 25.8 | 16.0 | 14.6 | 14.1 | 23.4 |
CA Sub | 21.0 | 12.1 | 8.2 | 15.1 | 3.0 |
CPHPC-106 | 23.4 | 14.4 | 11.4 | 14.4 | 43.5 |