fd&c blue no. 2 aluminum lake (c.i. 73015 (Al))

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IUPAC Name :aluminum (2E)-3-oxo-2-(3-oxo-5-sulfo-1H-indol-2-ylidene)-1H-indole-5-sulfonic acid
InChI :InChI=1/C16H10N2O8S2.Al/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;+3/b14-13+;
Std.InChI: InChI=1S/C16H10N2O8S2.Al/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;+3/b14-13+;
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InChIKey :KKHVNJFMNFIZLB-IERUDJENBE
Std.InChIKey: KKHVNJFMNFIZLB-IERUDJENSA-N
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SMILES :C1=CC2=C(C=C1S(=O)(=O)O)C(=O)/C(=C\3/C(=O)C4=C(N3)C=CC(=C4)S(=O)(=O)O)/N2.[Al+3]