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:
Coniferylalkoholchemical. created it with chemical drawing program and transformed it into own Stone at org en NORIGHTSRESERVED PDAUTHOR Released into the public domain by the author PDchem Stone en original upload log page en Coniferylalkoholchemical Stone bytes no created it with chemical drawing programm and transformed