28. Synthetic, food colours which may be used.-No synthetic food colours or a mixture thereof except the following shall be used in food: [ * * * * ] Sl. No Colour Common name Colours Index (1956) Chemical Class 1 Red Ponceau 4 R Carmoisine Fast Red Amaranth Erythrosine 16255 14720 16045 16185 45430 Azo Azo Azo Azo Xanthenes 2. Yellow Tartrazine Sun-set yellow 19140 15985 Pyrazolone Azo 3 Blue Indigo Carmine 4[Brilliant Blue FCF 73015 42090 Indigoid Triarylmethane 4. Green Green S Fast Green FCF 44090 42059 Triarylmethane Triarylmethanel
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