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:
Quassin PC ChemSketch pt. WP Chem Created in ChemSketch using pt bond length exported as WMF converted to dpi using The Gimp Own Physchim en Physchim Original upload log en Created with ChemSketch page en QuassinPCChemSketchpt Physchim bytes no image for WP Chem Created in ChemSketch using pt bond length exported