العربية
中文
english
français
Español
FAO Home
Food safety & quality
Scientific advice
Calls for data and experts
Microbiological risks and JEMRA
Chemical risks and JECFA
JECFA publications from meetings
Guidelines
Summary reports
Full reports
Toxicological monographs
Other scientific advice
Food safety and quality
|
share
>
Scientific advice
>
Chemical risks and JECFA
Online Edition: "Specifications for Flavourings"
Online help
About the data
Analytical Methods (Volume 4)
New search
Print
Flavouring
2-Methyl-1-methylthio-2-butene
Synonym(s)
Latest JECFA evaluation
2007 (Session 68)
Status of specification
Full
Information required
Chemical name
2-Methyl-1-methylthio-2-butene
JECFA number
1683
CAS number
89534-74-7
FEMA number
4173
COE number
FLAVIS number
Molecular weight
116.23
Chemical formula
C6H12S
Physical form/odour
Clear, colourless liquid; Cooked brown and roasted meat aroma
Solubility
Very slightly soluble in water; soluble in non-polar solvents
Solubility in ethanol
Soluble
Boiling point (°C)
78°
Assay min %
99%
Acid value max
Refractive index
1.468-1.474
Specific gravity
0.859-0.864
Other requirements
ID Test
CNMR HNMR IR MS
Spectrum
![](../typo3conf/ext/dyna_fef/download.php?dfile=/work/htdocs/disseminationtypo3/web/fileadmin/user_upload/jecfa/img/<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-cnmr.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-cnmr.gif" width="60px;"></a><br><a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-hnmr.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-hnmr.gif" width="60px;"></a><br><a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-ir.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-ir.gif" width="60px;"></a><br><a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-ms.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-ms.gif" width="60px;"></a><br>&dname=<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-cnmr.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-cnmr.gif" width="60px;"></a><br><a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-hnmr.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-hnmr.gif" width="60px;"></a><br><a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-ir.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-ir.gif" width="60px;"></a><br><a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-ms.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-ms.gif" width="60px;"></a><br> "Download")
![](fileadmin/user_upload/jecfa/img/<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-cnmr.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-cnmr.gif" width="60px;"></a><br><a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-hnmr.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-hnmr.gif" width="60px;"></a><br><a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-ir.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-ir.gif" width="60px;"></a><br><a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-ms.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa68/1683-ms.gif" width="60px;"></a><br>)