PRODUCT: CARMOISINE
IUPAC name : disodium;(3E)-4-oxo-3-[(4-sulfonatonaphthalen-1-yl) hydrazinylidene] naphthalene-1-sulfonate
PropertiesChemical formula : C20H12N2Na2O7S2
Molar mass : 502.423 g/mol
Colour Index No. : 14720
Food Colour No. : Food Red 3F.D. & C. No. : N/A
CAS NO. : 3567-69-9
E.E.C. No. : E-122
Specification
Total Dye Content Corrected for Sample (Min.) : 85%
Volatile Matter (chloride & sulphate) (Max) : 15%
Solubility In Water (20 c) : 120 gram / litre
Combined Ether Extract. (Max) : 0.20%
Water Insoluble (Max) : 0.20%
Class : Monoazo
Light Stability : 5
Heat Stability (100 c) : 4
Alkali Stability : 4
Subsidiary Dyes (Max) : 1.00%
Dyes Intermediate (Max) : 0.50%
4-aminonaphthalene-1-sulfonic acid4-hydroxynaphthalene-1-sulfonic acid
Lead : < 2ppm
Arsenic : < 1 ppm
Mercury : < 1 ppm
Heavy Metals : < 20 ppm





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