Online Edition: "Specifications for Flavourings"


      Français     Español  


New search

print-friendly version

Flavouring 4-Hydroxybenzoic acid
Synonym(s) p-Hydroxybenzoic acid
p-Salicylic acid
Latest JECFA evaluation 2002 (Session 59)
Status of specification Full
Chemical name 4-Hydroxybenzoic acid
JECFA number 957
CAS number 99-96-7  
FEMA number 3986
COE number -
FLAVIS number -
Molecular weight 138.12 
Chemical formula C7H6O3  
Physical form/odour White crystalline powder; faint nutty odour 
Solubility slightly soluble in water; soluble in organic solvents 
Solubility in ethanol freely soluble 
Boiling point (°C) NA
Assay min % 99% (by chemical analysis, acid-base titration)
Acid value max -
Refractive index NA
Specific gravity NA
Other requirements m.p. 213-214°
ID Test IR
Spectrum http://www.fao.org/ag/agn/jecfa-flav/img/img/957.gif