INDIGO CARMINE

Name – Indigo Carmine
Classification – C.I No.-73015/E132/F.D&C BLUE  2/Indigotine/C.I. FOOD BLUE 1/I.S.1698

No. Characteristic Requirement   Description Reddish Blue Powder 1 Total colour/Assay, percent by Mass, min. 85.00 2 Water-insoluble matter, percent by mass, Max. 00.20 3 Combined ether extracts, percent by mass, Max. 00.20 4 Subsidiary dyes, percent by mass, Max. 02.00 5 Dye intermediates, percent by mass, max.
• Isatin sulphanic acid,
• 5- Sulfoanthranilic acid 00.50 6 Unsulfonated primary aromatic amine (calculated as aniline)
percent by mass, max No 7 Lead, mg/kg, Max. 10.00 8 Arsenic, mg/kg, Max 03.00 9 Heavy metals, (as pb) mg/kg, max 40.00 10 Mercury, mg/kg, Max. 01.00 11 Cadmium, mg/kg, Max 01.00