API reference
Indigotindisulfonate sodium
- CAS number
- 860-22-0
- Molecular formula
- C16H8N2Na2O8S2
- Molecular weight
- 466.4 g/mol
About this molecule
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, via PubChem.
Identifiers
- IUPAC name
- disodium;2-(3-hydroxy-5-sulfonato-1H-indol-2-yl)-3-oxoindole-5-sulfonate
- InChIKey
- JFVXEJADITYJHK-UHFFFAOYSA-L
- SMILES
- C1=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+]
- PubChem CID
- 2723854
Also known as
Indigo carmine · Acid Blue 74 · Indigotindisulfonate sodium · Indigotine · indigocarmine · C.I. ACID BLUE 74 · Indigocarmin · C.I. Food Blue 1
Chemical data on this page is drawn from PubChem (National Library of Medicine) and is provided for identification only. Hanpars does not hold stock of every substance listed; availability, grade, documentation and regulatory status are confirmed per enquiry.
Tell us the grade, the quantity and the market.
Send the molecule or ingredient, the specification and the destination. We reply from Tehran with the questions, the documents and the next step.