Trithioacetone

Trithioacetone
Names
	Preferred IUPAC name Hexamethyl-1,3,5-trithiane
	Other names Trithioacetone
Identifiers
CAS Number	828-26-2;
3D model (JSmol)	Interactive image;
Beilstein Reference	5-19-09-00119
ChEMBL	ChEMBL3187896;
ChemSpider	12678;
ECHA InfoCard	100.011.438
EC Number	212-582-5;
PubChem CID	13233;
UNII	L0ME5B2ZWY;
CompTox Dashboard (EPA)	DTXSID2047723;
	InChI InChI=1S/C9H18S3/c1-7(2)10-8(3,4)12-9(5,6)11-7/h1-6H3 Key: NBNWHQAWKFYFKI-UHFFFAOYSA-N;
	SMILES C1(SC(SC(S1)(C)C)(C)C)(C)C;
Properties
Chemical formula	C9H18S3
Molar mass	222.42 g·mol−1
Odor	Unpleasant, sulfurous
Density	1.0660 to 1.0700 g/mL
Melting point	21.8°C
Boiling point	107°C/10mmHg
Refractive index (nD)	1.5390 to 1.5430
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335
Precautionary statements	P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Trithioacetone (2,2,4,4,6,6-hexamethyl-1,3,5-trithiane) is an organic chemical with formula C
₉H
₁₈S
₃. Its covalent structure is [–C(CH
₃)
₂–S–]
₃, that is, a six-membered ring of alternating carbon and sulfur atoms, with two methyl groups attached to each carbon. It can be viewed as a derivative of 1,3,5-trithiane, with methyl-group substituents for all of the hydrogen atoms in that parent structure.

The compound Trithioacetone is a stable cyclic trimer of thioacetone (propane-2-thione), which by itself is an unstable compound. In contrast, the analogous trioxane compound, 2,2,4,4,6,6-hexamethyl-1,3,5-trioxane (Triacetone), with oxygen atoms in place of the sulfur atoms, seems to be unstable, while its corresponding monomer acetone (2-propanone) is stable.