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 Edit this at Wikidata
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
  • 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
 GHS07: Exclamation mark
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
Chemical compound

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

  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".