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Online Edition: "Specifications for Flavourings"

Flavouring Hydroquinone monoethyl ether
Synonym(s) p-Hydroxyphenetole;1-Ethoxy-4-hydroxybenzene;p-Ethoxyphenol
Latest JECFA evaluation 2001 (Session 57)
Status of specification Full
Chemical name 4-Ethoxyphenol
JECFA number 720
CAS number 622-62-8
FEMA number 3695
COE number 2258
FLAVIS number
Molecular weight 138.17
Chemical formula C8H10O2
Physical form/odour White or colourless crystals, sweet herbaceous odour reminiscent of anise and fennel
Solubility slightly soluble to soluble in water; soluble in oils
Solubility in ethanol moderately soluble
Boiling point (°C) 246-247°
Assay min % 95%
Acid value max
Refractive index NA
Specific gravity NA
Other requirements mp: 64° (minimum)
ID Test IR