FAST GREEN FCF
Prepared at the 30th JECFA (1986), published in the Combined Compendium of Food Additive Specifications, FAO JECFA Monographs 1 (2005). Corrected at the 69th JECFA (2008). An ADI of 0-25 mg/kg bw was established at 30th JECFA (1986).
SYNONYMS CI Food Green 3, FD&C Green 3, CI (1975) No. 42053, INS No. 143
DEFINITION Consists essentially of disodium 3-[N-ethyl-N-[4-[[4-[N-ethyl-N-(3-sulfonatobenzyl)amino]phenyl](4-hydroxy-2-sulfonatophenyl)methylene]-2,5-cyclohexadien-1-ylidene]ammoniomethyl]benzenesulfonate and isomers and subsidiary colouring matters together with water, 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 Disodium 3-[N-ethyl-N-[4-[[4-[N-ethyl-N-(3-sulfonatobenzyl) amino] henyl](4-hydroxy-2-sulfonatophenyl)methylene]-2,5-cyclohexadien-1-ylidene] ammoniomethyl]-benzenesulfonate; Inner disodium salt of N-ethyl-N-[4[[4-ethyl[(3-sulfophenyl)methyl]amino]phenyl](4-hydroxy-2-sulfophenyl) methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfobenzene-methanaminium hydroxide
C.A.S. number 2353-43-9
Chemical formula C37H34N2Na2O10S3
Assay Not less than 85% total colouring matter
DESCRIPTION Red to brown-violet powder or crystals
FUNCTIONAL USES Colour
