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Indigo carmine
Catalog number: A16052.22
100 g, Each
Thermo Scientific Chemicals
Indigo carmine
Catalog number: A16052.22
100 g, Each
Quantity
Catalog number: A16052.22
also known as A16052-22
Price (JPY)
Chemical Identifiers
CAS
860-22-0
IUPAC Name
disodium (E)-3,3'-dioxo-1H,1'H,3H,3'H-[2,2'-biindolylidene]-5,5'-disulfonate
Molecular Formula
C16H8N2Na2O8S2
InChI Key
KHLVKKOJDHCJMG-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
Specifications
Specification SheetAppearance (Color)
Dark blue or dark purple to black
Loss on Drying
≤15.0% (200°C, constant weight)
Assay from Supplier's CofA
≥85%
lambda-max (UV-Vis)
608-613nm (water)
Form
Powder or crystalline powder
Description
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
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