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Online Edition: "Specifications for Flavourings"

Flavouring Diethyl malate
Synonym(s) Diethyl hydroxysuccinate;Ethyl malate;Diethyl 2-hydroxybutanedioate;dl-Ethyl malate
Latest JECFA evaluation 2000 (Session 55)
Status of specification Full
Chemical name Diethyl 2-hydroxybutanedioate
JECFA number 620
CAS number 2065419
FEMA number 2374
COE number 382
FLAVIS number
Molecular weight 190.2
Chemical formula C8H14O5
Physical form/odour colourless liquid; mild, winey-fruity odour with pleasant herbaceous undertone
Solubility soluble in water; miscible in alcohol and oil
Solubility in ethanol
Boiling point (°C) 254°; 91-92° (1 mm Hg)
Assay min % 99%
Acid value max
Refractive index 1.436-1.446
Specific gravity 1.120-1.128
Other requirements
ID Test MS