More Chemistry. More Possibilities.
The latest update of CHEMriya brings over 794 billion virtual product molecules to your compound exploration. Developed by OTAVA in collaboration with BioSolveIT, this on-demand Chemical Space opens up new opportunities for hit expansion, hit-to-lead optimization, and compound evolution. The November 2026 release combines OTAVA’s chemistry with efficient Chemical Space exploration to help you identify promising candidates for your drug discovery projects.
CHEMriya Update at a Glance
- 33 chemical reactions
- 60,986 extracted synthons
- 794,037,214,733 virtual product molecules
From 11 to 794 Billion Molecules
- Growing since April 2021: from an initial 11 billion to over 794 billion virtual products
- More than 72 times the original size: a substantially expanded pool of candidates for your projects
- November 2026 release: Version 4, Workflow Package CHEMriya_794bn_2026-11
CHEMriya: Previous vs. Latest Release
The November 2026 release offers approximately 14 times as many virtual product molecules as the March 2025 version, an increase of over 739 billion molecules.
| Parameter | March 2025 | November 2026 |
|---|---|---|
| Size | 55 billion | 794 billion |
| Version | 3 | 4 |
| Virtual product molecules | 54,913,225,010 | 794,037,214,733 |
Virtual product counts are calculated from the respective Workflow Packages. Extracted synthon counts were obtained using HPSee and do not represent building block counts.
How to Explore CHEMriya
Explore CHEMriya with infiniSee through three complementary search modes: Scaffold Hopper for pharmacophore-guided similarity, Analog Hunter for fingerprint-based analog searches, and Motif Matcher for substructure-focused exploration. The corresponding command-line tools (FTrees, SpaceLight, and SpaceMACS) also support integration into your own workflows.
For structure-based discovery, explore CHEMriya within your target’s binding site using Chemical Space Docking® in SeeSAR.
Discover the expanded CHEMriya Space and expect actives!