Item name:
Indigo carmine
Description:
Indigo carmine is organic sodium salt derived from indigo by sulfonation and its chemical formula is C16H8N2Na2O8S2. It has a role as a food colouring, a histological dye and a two-colour indicator.
Group:
Fillers, Dyes, Indicators
CAS Number:
860-22-0
EC Number:
212-728-8
Synonyms:
FD and C blue 2, indigotini, 5,5‘-Indigodisulfonic acid, disodium salt, Indigo Carmine, murabba, 1311blue, E132, Greell S, acidbluew, trans-indigo carmine, l-blau2, Sodium 3,3'-dioxo-[2,2'-biindolinylidene]-5,5'-disulfonate, indigo carmin, Indigo carmine, Indigocarmine, Disodium 5,5'-(2-(1,3-dihydro-3-oxo-2H-indazol-2-ylidene)-1,2-dihydro-3H-indol-3-one)disulphonate, C.I. 73015, Indigocarmin, Dinatrium-5,5'-(2-(1,3-dihydro-3-oxo-2H-indazol-2-yliden)-1,2-dihydro-3H-indol-3-on)disulfonat, C.I. 73015
Ipuac Name:
disodium;2-(3-hydroxy-5-sulfonato-1H-indol-2-yl)-3-oxoindole-5-sulfonate
Molecular Formula:
C16H8N2Na2O8S2
Molecular Weight:
466.346 g/mol
Melting Point:
>300ºC
Density:
1.01 g/mL at 20ºC
HS Code:
32041200
Risk Statements:
R22
Hazard Declaration:
H290
Signal World:
Warning