Tricarbon monosulfide

Tricarbon monosulfide
Names
	Preferred IUPAC name 3-Sulfanylidenepropa-1,2-dien-1-ylidene
	Other names Tricarbon sulfur
Identifiers
CAS Number	109545-35-9 ;
3D model (JSmol)	Interactive image;
ChemSpider	103868963;
PubChem CID	13641175;
CompTox Dashboard (EPA)	DTXSID601302203 ;
	InChI InChI=1S/C3S/c1-2-3-4 Key: DYOPWGBKIHJGRG-UHFFFAOYSA-N;
	SMILES [CH0]=C=C=S;
Properties
Chemical formula	C3S
Molar mass	68.09 g·mol−1
Related compounds
Related carbon sulfides	dicarbon monosulfide; carbon monosulfide; carbon disulfide
Related compounds	tricarbon monoxide; carbon subnitride
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Tricarbon monosulfide (C₃S) or tricarbon sulfur is a reactive molecular substance that has been detected in outer space. Tricarbon monosulfide is a heterocumulene or thiocumulene, consisting of a straight chain of three carbon atoms and a terminal sulfur atom.