2-Methylthiophene

2-Methylthiophene
Names
	Preferred IUPAC name 2-Methylthiophene
	Other names Methylthiol
Identifiers
CAS Number	554-14-3;
3D model (JSmol)	Interactive image;
ChemSpider	21168808;
ECHA InfoCard	100.008.240
EC Number	209-063-0;
PubChem CID	11126;
UNII	7115JAP77A;
CompTox Dashboard (EPA)	DTXSID3060291 ;
	InChI InChI=1S/C5H6S/c1-5-3-2-4-6-5/h2-4H,1H3 Key: XQQBUAPQHNYYRS-UHFFFAOYSA-N;
	SMILES CC1=CC=CS1;
Properties
Chemical formula	C5H6S
Molar mass	98.16 g·mol−1
Appearance	colorless liquid
Density	1.0168 g/cm3
Melting point	−63.4 °C (−82.1 °F; 209.8 K)
Boiling point	112.6 °C (234.7 °F; 385.8 K)
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H225, H302, H312, H332
Precautionary statements	P210, P233, P240, P241, P242, P243, P261, P264, P270, P271, P280, P301+P312, P302+P352, P303+P361+P353, P304+P312, P304+P340, P312, P322, P330, P363, 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-Methylthiophene is an organosulfur compound with the formula CH₃C₄H₃S. It is a colorless, flammable liquid. It can be produced by Wolff-Kishner reduction of thiophene-2-carboxaldehyde.^[1] Its commercial synthesis involvess vapor-phase dehydrogenation of a 1-pentanol/CS₂ mixture.^[2]

References

^ King, Wm. J.; Nord, F. F. (1949). "Thiophene Series. V. Wolff-Kishner Reductions". Journal of Organic Chemistry. 14: 638–42. doi:10.1021/jo01156a016.
^ Swanston, Jonathan (2006). "Thiophene". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a26_793.pub2. ISBN 3527306730..