Indigo Carmine

The offered Indigo Carmine is organic sodium salt that resulting from formal condensation of acid form with two equivalents of sodium hydroxide. We are engaged in manufacturing the Indigo Carmine which is known as synthetic color, although it is used to be extracted from plants of the genus Indigofera and approved for use as a food colorant in the U.S and E.U. It comprises of a mixture of disodium 3,3' - dioxo-2,2' - bi-indolyldene-5,7' –disulfonate, disodium 3,3' dioxo - 2,2' -bi-indolylidene-5,5' - disulfonate, subsidiary coloring matters along with sodium chloride/sodium sulfate as principal uncolored component.

Indigo Carmine Manufacturer

Indigo Carmine Food Color Specification

  • Product Name: Indigo Carmine Food Color
  • Color Shade:
  • Color Index No. : 73015
  • Synonyms: Acid Blue 74
  • Chemical Name: Disodium 3,3′-dioxo-2,2′-bi-indolylidene-5,5′-disulphonate
  • CAS No: 860-22-0
  • Class: Indigold
  • Total Dye Content % Min. : 85
  • Loss on Drying at 135°C & Sodium Chloride & Sulphates % Max. : 15
  • Water Insoluble Matter % Max. : 0.2
  • Ether Extracts % Max. : 0.2
  • Subsidiary Dye % Max. : 1.00
  • Dyes Intermediates % Max. : 0.50
  • Unsulphonated Primary Aromatic Amines % Max. : 0.01
  • Lead (AS "Pb") PPM (Max.) : 10.00
  • Arsenic (AS "Pb") PPM (Max.) : 1.00
  • Mercury (AS "Pb") PPM (Max.) : 1.0
  • Chromium (AS "Pb") PPM (Max.) : 5.0
  • Heavy Metal PPM Max. : 40.00
Indigo Carmine Supplier

Solubility of Indigo Carmine Food Color at room temperature

  • Water (gms./ltr.)  : 12.00
  • Glycerine (gms./ltr.) : 5.00
  • PropyleneGlycon (gms./ltr.) : 5.00
  • Ethanol (95%) (gms./ltr.) : Trace
Indigo Carmine Food Color
Stability to Acids Better
Stability to Neutral Weak
Stability to Alkalines Very Weak
Stability to Baking 205°C (400°F) Very Weak
Stability to Light Good
Stability to Heat Very Weak
Indigo Carmine Blue