Thermo Scientific Chemicals Indigo carmine

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.

Specifications

Chemical Identifiers

• CAS: 860-22-0
• Molecular Formula: C16H8N2Na2O8S2
• Molecular Weight (g/mol): 466.35
• MDL Number: MFCD00005723
• InChI Key: KHLVKKOJDHCJMG-QDBORUFSSA-L
• Synonym: indigo carmine, indigocarmine, acid blue 74, indigocarmin, indigotindisulfonate sodium, c.i. acid blue 74, food blue no. 2, amacid brilliant blue, c.i. food blue 1, fd&c blue no. 2
• PubChem CID: 5284351
• 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

• Melting Point: >300°C
• Odor: Odorless
• Quantity: 25 g
• Beilstein: 4103904
• Sensitivity: Light sensitive
• Merck Index: 14,4944
• Solubility Information: Soluble in ethylene glycol monomethyl ether and ethanol. Slightly soluble in water and alcohol. Insoluble in benzene,chloroform and organic solvents.
• IUPAC Name: disodium;(2E)-3-oxo-2-(3-oxo-5-sulfonato-1H-indol-2-ylidene)-1H-indole-5-sulfonate
• Formula Weight: 466.36
• Chemical Name or Material: Indigo carmine

Safety and Handling

Signal Word

• Warning

Hazard Category

• Skin sensitiser Category 1

Hazard Statement

• H317-May cause an allergic skin reaction.

Precautionary Statement

• P280-Wear protective gloves/protective clothing/eye protection/face protection.
• P302+P352-IF ON SKIN: Wash with plenty of water/.
• P333+P313-If skin irritation or rash occurs: Get medical advice/attention.
• P362+P364-Take off contaminated clothing and wash it before reuse.

RUO – Research Use Only