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Online Edition: "Specifications for Flavourings"

Flavouring 1,6-Hexalactam
Synonym(s) Caprolactam;2-Azacycloheptanone;Hexahydro-2H-azepin-2-one
Latest JECFA evaluation 2005 (Session 65)
Status of specification Full
Chemical name 1,6-Hexalactam
JECFA number 1594
CAS number 105-60-2
FEMA number 4235
COE number
FLAVIS number 16.052
Molecular weight 113.16
Chemical formula C6H11ON
Physical form/odour Yellowish solid; Amine, spicy aroma
Solubility Soluble in water
Solubility in ethanol Soluble
Boiling point (°C)
Assay min % 95%
Acid value max
Refractive index
Specific gravity
Other requirements mp: 70°