PONCEAU 4R
Prepared at the 74th JECFA (2011) and published in FAO JECFA Monographs 11 (2011), superseding specifications prepared at the 28th JECFA (1984), published in the Combined Compendium of Food Additive Specifications, FAO JECFA Monographs 1 (2005). An ADI of 0-4 mg/kg bw was established at the 27th JECFA (1983) and maintained at the 74thJECFA (2011).
SYNONYMS CI Food Red 7; Cochineal Red A; New Coccine; Brilliant Scarlet; CI (1975) No. 16255; INS No. 124
DEFINITION Ponceau 4R consists essentially of trisodium 2-hydroxy-1-(4-sulfonato-1-naphthylazo)-6,8-naphthalenedisulfonate, 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 Mattersapply.
Chemical names Trisodium 2-hydroxy-1-(4-sulfonato-1-naphthylazo)-6,8-naphthalenedisulfonate
C.A.S. number 2611-82-7
Chemical formula C20H11N2Na3O10S3
Formula weight 604.48
Assay Not less than 80% total colouring matters
DESCRIPTION Reddish powder or granules
FUNCTIONAL USES Colour
