Food safety and quality
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Flavouring |
Citral dimethyl acetal |
Synonym(s) |
3,7-Dimethyl-2,6-octadienyl dimethyl acetal |
Latest JECFA evaluation |
2001 (Session 57) |
Status of specification |
Full |
Information required |
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Chemical name |
1,1-Dimethoxy-3,7-dimethyl-2,6-octadiene |
JECFA number |
944 |
CAS number |
7549-37-3 |
FEMA number |
2305 |
COE number |
39 |
FLAVIS number |
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Molecular weight |
198.31 |
Chemical formula |
C12H22O2 |
Physical form/odour |
colourless to yellowish liquid with a mild, fresh, citrus, herbaceous odour |
Solubility |
insoluble in water; soluble in organic solvents, oils |
Solubility in ethanol |
miscible at room temperature |
Boiling point (°C) |
105-106° (10 mm Hg) |
Assay min % |
92% (sum of isomers) |
Acid value max |
2 |
Refractive index |
1.450-1.463 |
Specific gravity |
0.881-0.893 |
Other requirements |
Minimum assay (sum of isomers + hemiacetals + citral): 98% |
ID Test |
IR |
Spectrum |
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