Online Edition: "Specifications for Flavourings"


      Français     Español  


New search

print-friendly version

Flavouring Indole
Synonym(s) 1-Benzazole
1-Benzo(b)pyrrole
2,3-Benzopyrrole
Benzopyrrole
Latest JECFA evaluation 2004 (Session 63)
Status of specification Full
Chemical name Indole
JECFA number 1301
CAS number 120-72-9  
FEMA number 2593
COE number -
FLAVIS number 14.007  
Molecular weight 117.15 
Chemical formula C8H7N  
Physical form/odour White lustrous, flakey crystalline solid; Unpleasant odour at high concentration, odour becomes floral at higher dilutions 
Solubility Soluble in fixed oils and propylene glycol; Insoluble in glycerol 
Solubility in ethanol Soluble 
Boiling point (°C) -
Assay min % 97%
Acid value max -
Refractive index -
Specific gravity -
Other requirements mp: 51-54°
ID Test NMR
Spectrum http://www.fao.org/ag/agn/jecfa-flav/img/img/1301.gif