# Non-Water External Explicit Solvation Methodology

Snapshot date: `2026-03-07`

Scope:
- methanol external phase-1 screening subset
- ethanol external phase-1 screening subset
- acetonitrile external phase-1 screening subset
- DMSO external phase-1 screening subset

Protocol:
- production explicit-solvation route
- screening profile
- deep analysis disabled
- free energy mode off
- 50 explicit solvent molecules
- relaxed structure screening with native carrier model per solvent

Reported metrics:
- case count
- MAE and RMSE in kcal/mol
- R squared
- top absolute-error cases in each solvent summary

Interpretation:
- these packets extend public non-water external coverage
- they are curated phase-1 solvent datasets rather than large water-scale benchmark corpora
- water remains the broader external benchmark packet for hydration