Paramus — Solubility Formulation Screen

Overview

Improve the solubility of a poorly soluble compound: rank solvent/co-solvent blends and flag solubilization strategies. The value is the solvent-system screen + strategy triage, not one prediction.

Guidance vs execution: solubility and property estimates come from tested Paramus tools. Treat outputs as screening guidance to prioritize experimental confirmation.

When to Use

• Raising solubility of a hard-to-dissolve active
• Choosing among co-solvency, pH adjustment, or surfactant strategies Do not use for: full formulation optimization (use property optimization) or definitive solubility measurement.

Workflow

Compound + target solubility + acceptable solvents/constraints
  ↓ 1. Characterize solute            → logP, pKa, polarity, H-bonding
  ↓ 2. Screen solvent/co-solvent sets → predicted solubility per blend
  ↓ 3. Evaluate strategies            → co-solvency / pH / surfactant
  ↓ 4. Rank blends & strategies       → feasibility + predicted gain
  ↓ 5. Emit recommendation            → shortlist + rationale + provenance

Procedure

1. Discover tools via search/get_schema ("solubility", "co-solvent", "logP", "mixture").
2. Characterize the solute (logP, pKa, polarity, H-bonding capacity).
3. Screen candidate solvent and co-solvent systems for predicted solubility.
4. Evaluate solubilization strategies against constraints.
5. Rank blends and strategies by feasibility and predicted gain.
6. Emit a recommended shortlist with rationale and provenance.

Domain Judgment

• Match strategy to the molecule: pH adjustment only helps ionizable compounds.
• Respect route/regulatory limits on solvents — a high-solubility solvent may be non-viable.
• Predicted solubility guides ranking; confirm the top candidates experimentally.

Fallbacks

• Solubility tool unavailable → deliver a manual solvent-selection rationale (polarity/H-bonding), clearly scoped.
• Endpoint unreachable → stop and report; do not fabricate solubility numbers.