Food safety and quality: details

Flavouring	Glutamyl-2-aminobutyric acid
Synonym(s)	N-[1S]-1-carboxypropyl)-L-glutamine; L-gamma-glutamyl-L-2-aminobutyric acid; N-(DL-gamma-glutamyl)-2-aminobutyric acid; H-gamma-glu-Abu-OH; H-Glu(Abu-OH)-OH
Latest JECFA evaluation	2020 (Session 89)
Status of specification	Full
Information required
Chemical name	(2S)-2-amino-5-{[(1S)-1-carboxypropyl]amino}-5-oxopentanoic acid
JECFA number	2266
CAS number	16869-42-4
FEMA number	4738
COE number
FLAVIS number
Molecular weight	232.23
Chemical formula	C9H16N2O5
Physical form/odour	Off-white powder; Kokumi
Solubility	Freely soluble
Solubility in ethanol
Boiling point (°C)
Assay min %	95%
Acid value max
Refractive index
Specific gravity
Other requirements	mp: 180-182°; Optical rotation: -18° to -17°
ID Test	IR HNMR CNMR
Spectrum