Hexasulfur

Hexasulfur
Names
	Systematic IUPAC name Cyclohexasulfane; cyclo-Hexasulfur; Hexathiane;
	Other names Hexasulfur
Identifiers
CAS Number	13798-23-7;
3D model (JSmol)	Interactive image;
ChemSpider	123119 ;
PubChem CID	139602;
CompTox Dashboard (EPA)	DTXSID00893333 ;
	InChI InChI=1S/S6/c1-2-4-6-5-3-1 Key: FEXCMMPRRBSCRG-UHFFFAOYSA-N ;
	SMILES S1SSSSS1;
Properties
Chemical formula	S6
Molar mass	192.36 g·mol−1
Appearance	Vivid, orange, opaque crystals
Related compounds
Related compounds	Octasulfur
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Hexasulfur is an inorganic chemical with the chemical formula S₆. This allotrope of sulfur was first prepared by M. R. Engel in 1891 by treating thiosulfate with HCl. Hexasulfur is orange-red and forms a rhombohedral crystal. It is also called cyclo-S₆, ρ-sulfur, ε-sulfur, Engel's sulfur, and Aten's sulfur.