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Online Edition: "Specifications for Flavourings"
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About the data
Analytical Methods (Volume 4)
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Flavouring
Isovaleraldehyde propyleneglycol acetal
Synonym(s)
4-Methyl-2-(2-methylpropyl)-1,3-dioxolane
Latest JECFA evaluation
2007 (Session 68)
Status of specification
Full
Information required
Chemical name
2-Isobutyl-4-methyl-1,3-dioxolane
JECFA number
1732
CAS number
18433-93-7
FEMA number
4286
COE number
FLAVIS number
Molecular weight
144.21
Chemical formula
C8H16O2
Physical form/odour
Clear, colourless liquid; Fruity, slightly fatty aroma
Solubility
Insoluble in water; soluble in organic solvents
Solubility in ethanol
Soluble
Boiling point (°C)
164-165°
Assay min %
95%
Acid value max
1
Refractive index
1.412-1.420
Specific gravity
0.895-0.902
Other requirements
ID Test
HNMR IR MS
Spectrum