Dear friends,
I'm not familiar with this "copyright" thing, so is there anyone who can help me with this matter?
Right now I/m writing a review article regarding natural products and their active compounds, in that paper, I want to include their compounds such as caffeic acid, rutin and etc.
I also want to put their pictures of chemical structures there.
I'm wondering, whether I should ask permission from the authors whom I'm going to use the chemical structure, as all the compounds are commonly found in many natural products.
Anyone, please help me!!