Arsenic compounds containing carbon. They are mainly found in sea-living organisms, although some of these compounds have also been found in species living on land.
Source: GreenFacts
Compound(s) - Elemental Arsenic - Inorganic arsenic compound(s) - Organic
GreenFacts Summary on Arsenic:
Español: Compuestos orgánicos de arsénico
Français: Composé organique de l'arsenic