High‐Throughput Experimentation Reactor and Modular Environment for Synthesis: Design of a 3D‐Printed Photoreactor for Accessible High‐Throughput Experimentation

Herein, the design and validation of high‐throughput experimentation reactor and modular environment for synthesis (HERMES), a 3D‐printed photoreactor capable of running 24 reactions simultaneously, employing a standard reaction block and a single Kessil lamp are reported. The reactor features stirring and temperature control modules, making it an efficient tool for photochemical research in academic environments. It provides an accessible and reproducible platform for accelerating reaction discovery and optimization, while also serving as a valuable training tool in high‐throughput experimentation (HTE).