Thiepane (also hexathiophane) is the

organosulfur compound Organosulfur chemistry is the study of the properties and synthesis of organosulfur compounds, which are organic compounds that contain sulfur. They are often associated with foul odors, but many of the sweetest compounds known are organosulfur der ...

with the formula (CH₂)₆S. Thiepanes are seven-membered ring

heterocycle A heterocyclic compound or ring structure is a cyclic compound that has atoms of at least two different elements as members of its ring(s). Heterocyclic organic chemistry is the branch of organic chemistry dealing with the synthesis, proper ...

s that contains sulfide. The parent thiepane has seldom been studied. A variety of derivatives are known. Hexathiathiepane (CAS RN 17233-71-5, m.p. 90 °C) is CH₂S₆. A naturally occurring derivative is lenthionine, 1,4-(CH₂)₂S₅. Thiepane itself may be a product of spontaneous coal fires in post-mining waste heaps.

References

{{Heterocyclic-stub Sulfur heterocycles Seven-membered rings