Thietane

Thietane
Names
	Preferred IUPAC name Thietane
	Systematic IUPAC name Thiacyclobutane
	Other names Trimethylene sulfide
Identifiers
CAS Number	287-27-4 [chemspider];
3D model (JSmol)	Interactive image;
Beilstein Reference	102383
ChEBI	CHEBI:87565;
ChemSpider	8895 ;
ECHA InfoCard	100.005.469
EC Number	206-015-0;
PubChem CID	9251;
UNII	1O7C19QQDB;
UN number	1993
CompTox Dashboard (EPA)	DTXSID7059773 ;
	InChI InChI=1S/C3H6S/c1-2-4-3-1/h1-3H2 Key: XSROQCDVUIHRSI-UHFFFAOYSA-N ;
	SMILES C1CSC1;
Properties
Chemical formula	C3H6S
Molar mass	74.14 g·mol−1
Appearance	Colourless liquid
Odor	Sulfurous
Density	1.028 g cm−3
Boiling point	94 to 95 °C (201 to 203 °F; 367 to 368 K)
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H225, H302
Precautionary statements	P210
NFPA 704 (fire diamond)	2 4 1
Flash point	−11(9) °C
Related compounds
Other anions	Oxetane, Azetidine, Phosphetane
Related compounds	Thiirane, Dithietane, Tetrahydrothiophene, Thiane, Thiepane, Thiocane, Thionane
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Thietane is a heterocyclic compound containing a saturated four-membered ring with three carbon atoms and one sulfur atom. Some derivatives are of interest as drugs.

Thietane, and its derivative 2-propylthietane, are strong-smelling mouse alarm pheromones and predator scent analogues. Both the mouse and human olfactory receptors MOR244-3 and OR2T11, respectively, were found to respond to thietane in the presence of copper.