Indigo carmine
CAS Registry Number®
860-22-0
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CAS Name
Indigo carmineMolecular Formula
C16H10N2O8S2.2NaCite this Page
Indigo carmine. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. http://commonchemistry.cas.org/ChemicalDetail.aspx?ref=860-22-0 (retrieved ) (CAS RN: 860-22-0). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).Other Names and Identifiers
InChI
InChI=1S/C16H10N2O8S2.2Na/c19-15-9-5-7(27(21,22)23)1-3-11(9)17-13(15)14-16(20)10-6-8(28(24,25)26)2-4-12(10)18-14;;/h1-6,17-18H,(H,21,22,23)(H,24,25,26);;
InChIKey
InChIKey=BBHXOPLQIHJZNV-UHFFFAOYSA-N
SMILES
O=C1C(NC=2C1=CC(S(=O)(=O)O)=CC2)=C3C(=O)C=4C(N3)=CC=C(S(=O)(=O)O)C4.[Na]
Canonical SMILES
[Na].O=C1C2=CC(=CC=C2NC1=C3NC4=CC=C(C=C4C3=O)S(=O)(=O)O)S(=O)(=O)O
Other Names for this Substance
- 1H-Indole-5-sulfonic acid, 2-(1,3-dihydro-3-oxo-5-sulfo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo-, sodium salt (1:2)
- [Δ2,2′-Biindoline]-5,5′-disulfonic acid, 3,3′-dioxo-, disodium salt
- C.I. Acid Blue 74
- 1H-Indole-5-sulfonic acid, 2-(1,3-dihydro-3-oxo-5-sulfo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo-, disodium salt
- 1311 Blue
