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Thermo Scientific Chemicals
Indigo carmine
CAS: 860-22-0 | C16H8N2Na2O8S2 | 466.35 g/mol
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Catalog number A16052.22
also known as A16052-22
Price (USD)
107.65
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119.00Save 11.35 (10%)
Each
Quantity:
100 g
Price (USD)
107.65
Online Exclusive
119.00Save 11.35 (10%)
Each
Chemical Identifiers
CAS860-22-0
IUPAC Namedisodium (E)-3,3'-dioxo-1H,1'H,3H,3'H-[2,2'-biindolylidene]-5,5'-disulfonate
Molecular FormulaC16H8N2Na2O8S2
InChI KeyKHLVKKOJDHCJMG-QDBORUFSSA-L
SMILES[Na+].[Na+].[O-]S(=O)(=O)C1=CC=C2N\C(C(=O)C2=C1)=C1\NC2=CC=C(C=C2C1=O)S([O-])(=O)=O
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Specifications
Specification Sheet
Specification SheetAppearance (Color)Dark blue or dark purple to black
Loss on Drying≤15.0% (200°C, constant weight)
FormPowder or crystalline powder
Assay from Supplier's CofA≥85%
lambda-max (UV-Vis)608-613nm (water)
Useful in the staining of Negri bodiesIndigo carmine is used as a food colorant, pH indicator and dissolved ozone indicator. It is used to detect amino fluid leaks, highlight portions of the urinary tract, tissue stains and tool for the determination of hypochlorite. As a dye in renal function, it is used in testing and detection of nitrates and chlorates, and in the testing of milk.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
Applications
Useful in the staining of Negri bodiesIndigo carmine is used as a food colorant, pH indicator and dissolved ozone indicator. It is used to detect amino fluid leaks, highlight portions of the urinary tract, tissue stains and tool for the determination of hypochlorite. As a dye in renal function, it is used in testing and detection of nitrates and chlorates, and in the testing of milk.
Solubility
Soluble in ethylene glycol monomethyl ether and ethanol. Slightly soluble in water and alcohol. Insoluble in benzene, chloroform and organic solvents.
Notes
Light sensitive. Incompatible with strong oxidizing agents.
Useful in the staining of Negri bodiesIndigo carmine is used as a food colorant, pH indicator and dissolved ozone indicator. It is used to detect amino fluid leaks, highlight portions of the urinary tract, tissue stains and tool for the determination of hypochlorite. As a dye in renal function, it is used in testing and detection of nitrates and chlorates, and in the testing of milk.
Solubility
Soluble in ethylene glycol monomethyl ether and ethanol. Slightly soluble in water and alcohol. Insoluble in benzene, chloroform and organic solvents.
Notes
Light sensitive. Incompatible with strong oxidizing agents.
RUO – Research Use Only
General References:
- Costa, A. L.; Gomes, A. C.; Pillinger, M.; Gonçalves, I. S.; de Melo, J. S. S. An Indigo Carmine-Based Hybrid Nanocomposite with Supramolecular Control of Dye Aggregation and Photobehavior. Chem. Eur. J. 2015, 21 (34), 12069-12078.
- Agorku, E. S.; Kuvarega, A. T.; Mamba, B. B.; Pandey, A. C.; Mishra, A. K. Enhanced visible-light photocatalytic activity of multi-elements-doped ZrO2 for degradation of indigo carmine. J. Rare Earths 2015, 33 (5), 498-506.