Welcome to the Green Chemistry and Engineering Learning Platform (GChELP)
A range of free, shareable and interactive educational and training materials created to promote the uptake of green and sustainable methodologies in the synthesis of pharmaceuticals.


This resource is provided by the American Chemical Society Green Chemistry Institute Pharmaceutical Roundtable. The source material was created as part of the Innovative Medicines Initiative (IMI) funded CHEM21 project (Chemical Manufacturing Methods for the 21st Century Pharmaceutical Industries). CHEM21 received funding from the IMI Joint Undertaking under grant agreement n°115360, resources of which are composed of financial contribution from the European Union’s Seventh Framework Programme (FP7/2007-2013) and EFPIA companies’ in-kind contribution.

The educational material is licensed (unless otherwise specified) under Creative Commons license CC BY-NC 4.0, which gives permission for it to be shared and adapted for non-commercial purposes as long as attribution is given. For full details please see our legal statements.

The views expressed in regards to education and training materials represent the aspiration of the American Chemical Society, although may not always be the view of each individual organization. Referencing of external sources does not imply formal endorsement by the American Chemical Society.