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      Ligand-Based Design
Identify and refine promising candidates with powerful ligand-based shape and electrostatic methods that researchers have trusted for more than 20 years. OpenEye delivers easy-to-use tools with remarkable speed.
 
    Trusted Science.
2D Ligand-Based Methods
- Property Calculation and Filter (FILTER)
- Estimate pKa Value and Protonation (pKa Prospector)
- Tautomer / Protomer Enumeration & Charge Assignment (QUAPAC)
3D Ligand-Based Methods
- Rapid and Accurate Conformer Generation (OMEGA)
- Shape and Chemical Features Similarity Search (ROCS®, FastROCS™, FastROCS Plus)
- Extreme Scale 3D Shape Similarity Searching in Synthon Space (ROCS XTM)
- Fragment Replacement for Molecular Design (BROOD)
- Electrostatic Similarity for Lead-hopping (EON)
- 3D Quantitative Structure–Activity Relationship (3D-QSAR)
 
     
    Delivered the Way You Need.
ROCS X: AI-Enabled Molecular Search Unlocks Trillions
Science Brief: Free Energy Calculations using Non-Equilibrium Switching
miniWebinar: Faster, Larger, Smarter: Filling the Funnel for Ultra-Large Scale Virtual Screening
miniWebinar | Drugging the undruggable: A highly accurate method for detecting and ranking cryptic pockets
Conversations at CUP: Geoff Skillman & Charlotte Deane
Science Brief: Free Energy Calculations using Non-Equilibrium Switching
miniWebinar: Faster, Larger, Smarter: Filling the Funnel for Ultra-Large Scale Virtual Screening
miniWebinar | Drugging the undruggable: A highly accurate method for detecting and ranking cryptic pockets
Conversations at CUP: Geoff Skillman & Charlotte Deane
Resources
Glimpse the Future through News, Events, Webinars and more
News
ROCS X: AI-Enabled Molecular Search Unlocks Trillions
                BOSTON, OpenEye miniCUP—Sept. 25, 2025—Cadence Molecular Sciences (OpenEye), a business unit of Cadence (Nasdaq: CDNS), announced today at miniCUP Boston, the launch of ROCS X, an AI-enabled virtual screening solution that allows scientists to conduct 3D searches of trillions of drug-like molecules.
              
            
              
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          Science Brief: Free Energy Calculations using Non-Equilibrium Switching
                Structure-Based Lead Optimization with Non-Equilibrium Switching (NES) Chris Neale1, Gaetano Calabró1, and Christopher Bayly1 1OpenEye, Cadence Molecular Sciences, 9 Bisbee Court Suite D, Santa Fe, NM 87508 Summary: OpenEye NES predicts, within hours, ligand affinities with useful rank-order relations For DMTA cycles, selection enrichment is more important than correlation or rank ordering NES achieves 2- to 4-fold enrichments across a broad spectrum of protein targets and ligand chemistries
              
            
              
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          Webinar
miniWebinar: Faster, Larger, Smarter: Filling the Funnel for Ultra-Large Scale Virtual Screening
              
                Read now
                
              
            
          Webinar
miniWebinar | Drugging the undruggable: A highly accurate method for detecting and ranking cryptic pockets
              
                Read now
                
              
            
          News
Conversations at CUP: Geoff Skillman & Charlotte Deane
              
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