Food safety and quality: details

Flavouring	(±)-Naringenin
Synonym(s)	(±)-5,7-Dihydroxy-2-(4-hydroxyphenyl)-4H-chroman-4-one
Latest JECFA evaluation	2020 (Session 89)
Status of specification	Full
Information required
Chemical name	5,7-dihydroxy-2-(4-hydroxyphenyl)-2,3-dihydro-4H-chroman-4-one
JECFA number	2257
CAS number	67604-48-2; 17654-19-2; 480-41-1
FEMA number	4797
COE number
FLAVIS number	16.132
Molecular weight	272.25
Chemical formula	C15H12O5
Physical form/odour	Beige powder; slight citrus
Solubility	Practically insoluble to insoluble
Solubility in ethanol	Soluble
Boiling point (°C)
Assay min %	95% (Sum of isomers)
Acid value max
Refractive index
Specific gravity
Other requirements	mp: 251°; Isomeric composition: R isomer 50.6% (17654-19-2); S isomer 49.4% (480-41-1)
ID Test	MS HNMR CNMR IR
Spectrum