Perception of smell relies on the activation of specific receptors found on the surface of olfactory neurons. This activation occurs when odorant molecules bind to these olfactory receptors (ORs), initiating a cascade of signalling pathways that lead to the perception of distinct odors. To gain a deeper understanding of the molecular mechanisms involved in olfaction, we have gathered a database of OR-molecule bioassay experiments. These experiments have been sourced from published literature and public databases, amounting to a total of 51,395 unique combinations of molecule-receptor pairs. Within the database, you will find valuable information about the responses, receptors, molecules, and experiments associated with each OR-molecule pair.