Disulfide
From Memory Alpha, the free Star Trek reference
A disulfide is a chemical compound containing the disulfide ion (S2−), made up of two sulfur atoms.
Neelix's cousin once had a job transporting disulfides from a gas giant. He enjoyed the turbulence, according to Neelix, who also noted that "disulfides are known to cause delusions." (VOY: "Friendship One")
