Indigo carmine

Indigotindisulfonate Sodium An indolesulfonic acid that is used as a dye in renal function testing and as a reagent for the detection of nitrates and chlorates and in the testing of milk.

Molecular Formula: C₁₆H₈N₂Na₂O₈S₂

InChI: InChI=1/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);;/q;2*+1/p-2/b14-13+;;/fC16H8N2O8S2.2Na/q-2;2m

InChIKey: InChIKey=KHLVKKOJDHCJMG-ZACNHFNWDU
SMILES: C1=CC2=C(C=C1S(=O)(=O)[O-])C(=O)C(=C3C(=O)C4=C(N3)C=CC(=C4)S(=O)(=O)[O-])N2.[Na+].[Na+]

Names:
    disodium (2E)-3-oxo-2-(3-oxo-5-sulfonato-1H-indol-2-ylidene)-1H-indole-5-sulfonate
    D01563
    Indigocarmine (JP15)
    indigocarmine
    Indigotindisulfonate sodium (USP)
    Indigotindisulfonate sodium
    Indigo carmine (TN)
    Indigo carmine
    860-22-0

Registries:
    PubChem CID 5284351
    PubChem ID 7848626