Food safety and quality
|
|
|
Flavouring |
2-Acetyl-5-methylthiophene |
Synonym(s) |
2-Methyl-5-acetylthiophene;1-(5-Methyl-thienyl)ethan-1-one |
Latest JECFA evaluation |
2012 (Session 76) |
Status of specification |
Full |
Information required |
|
Chemical name |
1-(5-Methylthiophen-2-yl)ethanone |
JECFA number |
2107 |
CAS number |
13679-74-8 |
FEMA number |
4643 |
COE number |
|
FLAVIS number |
|
Molecular weight |
140.2 |
Chemical formula |
C7H8OS |
Physical form/odour |
Colourless to pale yellow liqud to crystalline powder at lower temperatures; Roasted aroma with sweet notes |
Solubility |
Very slightly soluble in water |
Solubility in ethanol |
Soluble |
Boiling point (°C) |
232-234° |
Assay min % |
95% |
Acid value max |
|
Refractive index |
1.557-1.567 |
Specific gravity |
1.120-1.130 (20°) |
Other requirements |
m.p. 24-28° |
ID Test |
IR |
Spectrum |
|
|
|
|