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Online Edition: "Specifications for Flavourings"

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Flavouring	Isovaleraldehyde diethyl acetal
Synonym(s)	1,1-Diethoxyisopentane 3-Methylbutanal diethyl acetal
Latest JECFA evaluation	2007 (Session 68)
Status of specification	Full
Chemical name	1,1-Diethoxy-3-methylbutane
JECFA number	1730
CAS number	3842-03-3
FEMA number	4371
COE number	-
FLAVIS number	06.059
Molecular weight	160.26
Chemical formula	C₉H₂₀O₂
Physical form/odour	Clear, colourless liquid; Fruity, fatty aroma
Solubility	Insoluble in water; soluble in organic solvents
Solubility in ethanol	Soluble
Boiling point (°C)	159-162°
Assay min %	95%
Acid value max	-
Refractive index	1.395-1.403
Specific gravity	0.825-0.832
Other requirements	-
ID Test	HNMR IR MS
Spectrum	http://www.fao.org/ag/agn/jecfa-flav/img/jecfa68/1730-hnmr.gif http://www.fao.org/ag/agn/jecfa-flav/img/jecfa68/1730-ir.gif http://www.fao.org/ag/agn/jecfa-flav/img/jecfa68/1730-ms.gif

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