Products 860-22-0

CAS 860-22-0 appears in our catalog under these names: Indigo Carmine, 5,5’-Indigodisulfonic Acid Disodium Salt (Technical Grade), Indigotine, Indigo carmine/ 98.72% (existing batch purity), Indigo carmine. Offered by: Chemat Brand, TRC, Dr. Ehrenstorfer, TargetMol, GLPBio. Available pack sizes: on request, 25g, 10g, 5g, 250mg, 500mg, 100g, 500g.

Indigo Carmine
Chemat Brand, TRC, Thermo Scientific (Alfa Aesar)
  • size: on request, 10g, 25g, 5g
  • Variants: 8
from 147.89
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5,5’-Indigodisulfonic Acid Disodium Salt (Technical Grade)
TRC
  • size: 25g
  • Variants: 1
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Indigotine
Dr. Ehrenstorfer
  • size: 250mg
  • Variants: 1
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Indigo carmine/ 98.72% (existing batch purity)
TargetMol
  • size: 500mg
  • Variants: 1
from 452.11
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Indigo carmine
GLPBio
  • size: 500mg
  • Variants: 1
from 578.32
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Indigo Carmine, >95.0%(E)
TCI
  • size: 25g
  • Variants: 1
from 157.68
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Indigo Carmine, pure, certified
Thermo Scientific (Acros)
  • size: 25g, 100g
  • Variants: 2
from 220.05
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Indigo Carmine, for analysis, high purity biological stain
Thermo Scientific (Acros)
  • size: 25g, 100g, 500g
  • Variants: 3
from 182.19
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Food Blue No. 2
TCI
  • size: 25g
  • Variants: 1
from 369.12
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Indigo Carmine (C.I. 73015), 85.00%
Chemat
  • size: 100g, 250g, 25g, 500g
  • Variants: 4
from 171.66
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Indigo Carmine 85%
Ambeed
  • size: 5g, 25g, 100g, 500g
  • Variants: 5
from 120.06
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INDIGO CARMINE, CERTIFIED
Sigma-Aldrich
  • size: 100G, 25G
  • Variants: 2
from 345.00
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INDIGOCARMINE, FOR MICROSCOPY
Sigma-Aldrich
  • size: 100G, 25G
  • Variants: 2
from 282.00
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Sodium 3,3'-dioxo-[2,2'-biindolinylidene]-5,5'-disulfonate, 85%, 85%
Chemat
  • size: 5g, 25g, 100g, 500g
  • Variants: 4
from 78.80
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Indigo carmine, 98.0%
MedChemExpress
  • size: 500 mg
  • Variants: 1
from 361.49
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Indigo carmine (Standard)
MedChemExpress
  • size: 25 mg, 10 mg, 100 mg, 50 mg
  • Variants: 4
from 263.96
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Indigo carmine (C.I. 73015), min. 80 %, p.a., 25 g, glass
Roth
  • size: 25g
  • Variants: 1
from 155.28
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Indigo carmine (C.I. 73015), min. 80 %, p.a., 100 g, glass
Roth
  • size: 100g
  • Variants: 1
from 412.97
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Indigo carmine (C.I. 73015), for microscopy, 10 g, glass
Roth
  • size: 10g
  • Variants: 1
from 106.19
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Indigo carmine (C.I. 73015), for microscopy, 25 g, glass
Roth
  • size: 25g
  • Variants: 1
from 164.71
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Indigo carmine (C.I. 73015), for microscopy, 100 g, glass
Roth
  • size: 100g
  • Variants: 1
from 398.81
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Indigo Carmine Indicator, 11.5-14.0, IND
Fluorochem
  • size: 100g, 500g, 1kg
  • Variants: 3
from 294.71
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Structural formula: {0} (CAS {1})

Indigo carmine is an organic sodium salt resulting from the formal condensation of indigo carmine (acid form) with two equivalents of sodium hydroxide. It is an indicator at pH 11.5-14, changing from blue to yellow. It has a role as a two-colour indicator, a histological dye and a food colouring. It contains an indigo carmine(2-).

Source: ChEBI

Identity
Molecular formulaC16H8N2Na2O8S2
Molecular weight466.4 g/mol
IUPAC namedisodium;2-(3-hydroxy-5-sulfonato-1H-indol-2-yl)-3-oxoindole-5-sulfonate
InChIKeyJFVXEJADITYJHK-UHFFFAOYSA-L
SMILESC1=CC2=C(C=C1S(=O)(=O)[O-])C(=C(N2)C3=NC4=C(C3=O)C=C(C=C4)S(=O)(=O)[O-])O.[Na+].[Na+]

Computed by PubChem (NCBI)

Synonyms: Indigo carmine, Acid Blue 74, Indigotindisulfonate sodium, Indigotine, indigocarmine, Sodium 3,3'-dioxo-[2,2'-biindolinylidene]-5,5'-disulfonate, Indigocarmin, C.I. Food Blue 1, FD&C Blue No. 2, Food Blue No. 2
Isomers (same molecular formula)
disodium;2-(3-hydroxy-5-sulfonato-1H-indol-2-yl)-3-oxoindole-7-sulfonate C16H8N2Na2O8S2