Oxathiazolones information

1,3,4-Oxathiazol-2-one
	; 1,3,4-Oxathiazol-2-one
Names
	Preferred IUPAC name 2H-1,3,4-Oxathiazol-2-one
Identifiers
CAS Number	64487-69-0 ;
3D model (JSmol)	Interactive image;
ChemSpider	11632795;
PubChem CID	22114966;
	InChI InChI=1S/C2HNO2S/c4-2-5-1-3-6-2/h1H Key: PJCFLHUCYONHAS-UHFFFAOYSA-N; InChI=1/C2HNO2S/c4-2-5-1-3-6-2/h1H Key: PJCFLHUCYONHAS-UHFFFAOYAS;
	SMILES O=C1OC=NS1;
Properties
Chemical formula	C2HNO2S
Molar mass	103.10 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

The oxathiazolones are a family of heterocyclic compounds in which the parent derivative has the molecular formula C₂HNO₂S and for which multiple isomers are known. The two known isomers with the highest profile in the literature are 1,3,4-oxathiazol-2-one^[1] and 1,4,2-oxathiazol-5-one.^[2]

^ Jukič M, Grabrijan K, Kadić S, Lera Garrido FJ, Sosič I, Gobec S, Obreza A (December 2017). "Chlorocarbonylsulfenyl Chloride Cyclizations Towards Piperidin-3-yl-oxathiazol-2-ones as Potential Covalent Inhibitors of Threonine Proteases". Acta Chimica Slovenica. 64 (4): 771–781. doi:10.17344/acsi.2017.3883. PMID 29318298.
^ Argyropoulos NG (1996-01-01). "4.14 - 1,4-Oxa/thia-2-azoles". In Katritzky AR, Rees CW, Scriven EF (eds.). Comprehensive Heterocyclic Chemistry II. Oxford: Pergamon. pp. 491–543. ISBN 978-0-08-096518-5. Retrieved 2020-10-11., and references therein.

[:0-1] Jukič M, Grabrijan K, Kadić S, Lera Garrido FJ, Sosič I, Gobec S, Obreza A (December 2017). "Chlorocarbonylsulfenyl Chloride Cyclizations Towards Piperidin-3-yl-oxathiazol-2-ones as Potential Covalent Inhibitors of Threonine Proteases". Acta Chimica Slovenica. 64 (4): 771–781. doi:10.17344/acsi.2017.3883. PMID 29318298.

[2] Argyropoulos NG (1996-01-01). "4.14 - 1,4-Oxa/thia-2-azoles". In Katritzky AR, Rees CW, Scriven EF (eds.). Comprehensive Heterocyclic Chemistry II. Oxford: Pergamon. pp. 491–543. ISBN 978-0-08-096518-5. Retrieved 2020-10-11., and references therein.

Names
1,3,4-Oxathiazol-2-one
Preferred IUPAC name 2H-1,3,4-Oxathiazol-2-one
Identifiers
CAS Number	64487-69-0^Y
3D model (JSmol)	Interactive image
ChemSpider	11632795
PubChem CID	22114966
InChI InChI=1S/C2HNO2S/c4-2-5-1-3-6-2/h1H Key: PJCFLHUCYONHAS-UHFFFAOYSA-N InChI=1/C2HNO2S/c4-2-5-1-3-6-2/h1H Key: PJCFLHUCYONHAS-UHFFFAOYAS
SMILES O=C1OC=NS1
Properties
Chemical formula	C₂HNO₂S
Molar mass	103.10 g·mol⁻¹
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references