BRILLIANT BLUE FCF
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 0-12.5 mg/kg bw was established at the 13th JECFA (1969).
SYNONYMS CI Food Blue 2, FD&C Blue No.1, CI (1975) No. 42900, INS No. 133
DEFINITION Consists essentially of Disodium 3-[N-ethyl-N-[4-[[4-[N-ethyl-N-(3-sulfonatobenzyl)-amino] phenyl] (2-sulfonatophenyl)methylene]-2,5-
cyclohexadiene-1-ylidene] ammoniomethyl] benzenesulfonate and its isomers 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 Disodium 3-[N-ethyl-N-[4-[[4-[N-ethyl-N-(3-sulfonatobenzyl)-amino]phenyl](2-sulfonatophenyl)methylene]-2,5-cyclohexa-diene-1-
ylidene]ammoniomethyl]-benzenesulfonate; Disodium I-[4-(N-ethyl-3-sulfonatobenzylamino)phenyl]-I- [4-(N-ethyl-3-sulfonatobenzyliminio)cyclohexa-2,5-dienyli-dene]toluene-2-sulfonate (an alternative chemical name)
C.A.S. number 3844-45-9
Chemical formula C37H34N2Na2O9S
Formula weight 792.86
Assay Not less than 85% total colouring matter
DESCRIPTION Blue powder or granules
FUNCTIONAL USES Colour
