Observed arrival · 2026-11-14
Reaction Optimizer keeps experiments in bounds
A free browser tool proposes reaction conditions to try next, in rounds, based on results you enter.
- For
- Chemists planning reaction-condition experiments
- Worth noticing
- It accepts up to 5,000 listed combinations and can assign one-fifth of later rounds to random untried conditions.
Field notes
The page describes an iterative search: users list variables and allowed values, enter results from each round, and receive untried combinations selected using what has worked and what remains uncertain. The chart groups runs by round and exposes each run's conditions on hover. The tool caps the search space at 5,000 combinations; random mode assigns one-fifth of rounds from round two to random untried conditions. The author cautions that noisy measurements can mislead and that a flat stretch does not prove the search is finished.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue