TARTRAZINE
Prepared at the 28th JECFA (1984), published in FNP 31/1 (1984) and in FNP 52 (1992). Metals and arsenic specifications revised at the 59th
JECFA (2002). An ADI of 0-7.5 mg/kg was established at the 8th JECFA (1964)
SYNONYMS CI Food Yellow 4, FD&C Yellow No. 5, CI (1975) No. 19140, INS No. 102
DEFINITION Consists essentially of trisodium 5-hydroxy-1-(4-sulfonatophenyl)-4-(4-sulfonatophenylazo)-H-pyrazole-3-carboxylate and subsidiary colouring matters together with sodium chloride and/or sodium sulfate as the principal uncoloured components.
May be converted to the corresponding aluminium lake in which case only the General Specifications for Aluminium Lakes of Colouring Matters
apply.
Chemical names Trisodium 5-hydroxy-1-(4-sulfonatophenyl)-4-(4-sulfonato- phenylazo)-Hpyrazole-3-carboxylate
C.A.S. number 1934-21-0
Chemical formula C16H9N4Na3O9S2
Formula weight 534.37
Assay Not less than 85% total colouring matters
DESCRIPTION Light orange powder or granules
FUNCTIONAL USES Colour
