2,5-Dimethylthiophene

2,5-Dimethylthiophene
Names
	Preferred IUPAC name 2,5-Dimethylthiophene
Identifiers
CAS Number	638-02-8;
3D model (JSmol)	Interactive image;
ChemSpider	11998;
ECHA InfoCard	100.010.286
EC Number	211-313-9;
PubChem CID	12514;
UNII	V6DDX6WB12;
CompTox Dashboard (EPA)	DTXSID2074295;
	InChI InChI=1S/C6H8S/c1-5-3-4-6(2)7-5/h3-4H,1-2H3 Key: GWQOOADXMVQEFT-UHFFFAOYSA-N;
	SMILES CC1=CC=C(S1)C;
Properties
Chemical formula	C6H8S
Molar mass	112.19 g·mol−1
Appearance	Colorless liquid
Density	0.9836 g/cm3
Melting point	−62.6 °C (−80.7 °F; 210.6 K)
Boiling point	136.5 °C (277.7 °F; 409.6 K)
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H226
Precautionary statements	P210, P233, P240, P241, P242, P243, P280, P303+P361+P353, P370+P378, P403+P235, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

2,5-Dimethylthiophene is an organosulfur compound with the formula C₄H₂(CH₃)₂S. It is one of four isomers of dimethylthiophene. A colorless liquid, it is prepared by sulfurization of hexane-2,5-dione.^[1] It is approved as a food flavouring additive in Europe.^[2]

References

^ Shridhar, D. R.; Jogibhukta, M.; Rao, P. Shanthan; Handa, Vijay K. (1982). "An Improved Method for the Preparation of 2,5-Disubstituted Thiophenes". Synthesis. 1982 (12): 1061–1062. doi:10.1055/s-1982-30065. S2CID 97515802.
^ "Document 32012R0872".

[1] Shridhar, D. R.; Jogibhukta, M.; Rao, P. Shanthan; Handa, Vijay K. (1982). "An Improved Method for the Preparation of 2,5-Disubstituted Thiophenes". Synthesis. 1982 (12): 1061–1062. doi:10.1055/s-1982-30065. S2CID 97515802.

[2] "Document 32012R0872".

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