A Double Pushout Diagram
Published:
The above depicts a Double Pushout diagram to model a chemical reaction. An interactive version of the software where this is used can be found here.
See also:
Andersen, J. L., C. Flamm, D. Merkle, P. F. Stadler: Chemical Transformation Motifs — Modelling Pathways as Integer Hyperflows. IEEE/ACM Transactions on Computational Biology and Bioinformatics, 16:2, 510–523, 2019.