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Indigo Carmine 5,7'-Isomer (~90%)

Product Specifications

Synonyms

2-(1,3-Dihydro-3-oxo-7-sulfo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo-1H-indole-5-sulfonic Acid Sodium Salt; 3,3'-Dioxo-[Δ2,2'-Biindoline]-5,7'-disulfonic Acid Disodium Salt

Hazard Statement

Harmful if swallowed

Smiles

[Na]OS(=O)(=O)c1ccc2N\C(=C/3\Nc4c(cccc4S(=O)(=O)O[Na])C3=O)\C(=O)c2c1

Molecular Formula

C16 H8 N2 Na2 O8 S2

Molecular Weight

466.35

InChI

InChI=1S/C16H10N2O8S2.2Na/c19-15-8-2-1-3-11(28(24,25)26)12(8)18-14(15)13-16(20)9-6-7(27(21,22)23)4-5-10(9)17-13;;/h1-6,17-18H,(H,21,22,23)(H,24,25,26);;/q;2*+1/p-2/b14-13+;;