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.
RAminoSaeure. RAminoSure own original text selbst erstellt br original text muellerb original upload log de Man CommonsHelper page de RAminoS Aure Muellerb bytes no Andere Versionen Naphthalene sulfonic acids Naphthylamines
Page 2023 Free-images.com. All images are Public Domain