Observed arrival · 2026-09-22
ReactionLens Makes Chemistry Show Its Work
A public chemistry explorer for looking up molecules, inspecting reactions, and following mechanisms on real structures.
- For
- Chemistry students, researchers, and reaction-curious builders
- Worth noticing
- Every value is labeled by provenance, separating measured results, rule-derived calculations, analogues, predictions, and unknowns.
Field notes
ReactionLens organizes chemical information around provenance rather than presenting every result as equally certain. Its stated categories distinguish published experimental records from analogue evidence, deterministic chemistry, model proposals, and unknowns. Molecule lookup accepts names, formulas, SMILES, or InChI, while reaction records can include conditions, reported yields, and source links. The homepage also identifies a Suzuki–Miyaura coupling as an example and describes a Reaction Lab for tracing bond changes on real structures.
Observed signals
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Editorial observations of this landing page, not a rating.
One card from the complete issue