This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Tryptophan biosynthesis. Tryptophan biosynthesis en Choij CommonsHelper Created myself using ChemDraw based on Yikrazuul's Image Tryptophanesynthesis since deleted Commons Deletion requests Tryptophanesynthesis last version Boghog en file Tryptophan biosynthesis zhcn svg Tryptophan biosynthesis en svg Boghog Original upload