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.
PiperyleneDballs. Ballandstick model of the piperylene molecule Derived from File TransbutadieneDballs and File EthaneDballs Ben Mills and Jynto Pentadienes Images by Jynto
Page 2023 Free-images.com. All images are Public Domain