Thiopyran

Thiopyran
2H-Thiopyran	4H-Thiopyran
Names
	IUPAC name 2H-Thiopyran; 4H-Thiopyran
Identifiers
CAS Number	(2H): 289-72-5 ; (4H): 289-70-3 ;
ChemSpider	(2H): 555888 ; (4H): 119913 ;
PubChem CID	(2H): 640539; (4H): 136136;
UNII	(4H): W44DE4RPN2 (2H) ;
CompTox Dashboard (EPA)	(2H): DTXSID60348753 ;
Properties
Chemical formula	C5H6S
Molar mass	98.16 g·mol−1
Density	1.1446g/cm3
Boiling point	241.5 °C (466.7 °F; 514.6 K)
	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

Thiopyran is a heterocyclic compound with the chemical formula C₅H₆S. It has two isomers, 2H-thiopyran and 4H-thiopyran, which differ by the location of double bonds. Thiopyrans are analogous to pyrans in which the oxygen atoms have been replaced by sulfur atoms.