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Online Edition: "Specifications for Flavourings"

Flavouring 4-Methyl-2-pentyl-1,3-dioxolane
Synonym(s) Hexanal propylene glycol cyclic acetal
Latest JECFA evaluation 2001 (Session 57)
Status of specification Full
Chemical name 4-Methyl-2-pentyl-1,3-dioxolane
JECFA number 928
CAS number 1599-49-1
FEMA number 3630
COE number
FLAVIS number
Molecular weight 158.24
Chemical formula C9H18O2
Physical form/odour colourless to pale yellow liquid with a mild , fruity, pear-like odour
Solubility slightly soluble in water; soluble in organic solvents, oils
Solubility in ethanol miscible at room temperature
Boiling point (°C) 82° (18 mm Hg)
Assay min % 97% (sum of isomers)
Acid value max 1
Refractive index 1.418-1.425
Specific gravity 0.893-0.901
Other requirements
ID Test IR