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Red 2G INS No. 128

  • Published: 2013-08-08
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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 0-1 mg/kg bw was established at the 25th JECFA (1981)
SYNONYMS CI Food Red 10, Azogeranine, CI (1975) No. 18050, INS No. 128
DEFINITION Consists essentially of disodium 8-acetamido-1-hydroxy-2-phenylazo-3,6-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 Matters apply.
Chemical names Disodium 8-acetamido-1-hydroxy-2-phenylazo-3,6-naphthalenedisulfonate
C.A.S. number 3734-67-6
Chemical formula C18H13N3Na2O8S2
Formula weight 509.43
Assay Not less than 80% total colouring matter
DESCRIPTION Red powder or granules

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