reactionsor

Reactionsor is a term used in discussions of chemical kinetics and computational modelling to denote either a conceptual framework for representing competing reaction pathways or a software platform that orchestrates simulation and analysis of reaction networks. Because there is no single, universally adopted standard by this name, the term is used variably across fields.

As a conceptual framework, Reactionsor treats a reaction network as a directed graph where nodes are chemical species and edges denote elementary steps, with pathway selection managed by a controller that can choose among alternative routes based on conditions or probabilities. As software, Reactionsor provides modules for inputting species and reactions, deterministic integration of rate equations or stochastic simulations, sensitivity analysis, parameter fitting, and visualization. It can interface with established formats such as SBML.

History and usage of the term began with scattered publications and software project names in the 2010s. There is no official standard or consensus on its scope, leading to variations in implementation and emphasis. Users are advised to consult project-specific documentation to determine whether a given Reactionsor tool emphasizes pathway optimization, kinetic modeling, data fitting, or educational demonstrations.

Related topics include chemical kinetics, reaction networks, the Gillespie algorithm, SBML, and systems biology.