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18162-48-6 872-50-4 Methylene Chloride naphthalene THF Titanium Dioxide

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Product NameTetraiodophenolphthalein potassium salt

CAS

Molecular FormulaC20H9I4KO4

Molecular Weight859.99924

InChIInChI=1S/C20H10I4O4.K/c21-15-13-14(16(22)18(24)17(15)23)20(28-19(13)27,9-1-5-11(25)6-2-9)10-3-7-12(26)8-4-10;/h1-8,25-26H;/q;+1/p-1

InChIKey BYRYRSZDZPWXSZ-UHFFFAOYSA-M

Smiles[K+].C1(C2=CC=C(O)C=C2)(C2=CC=C([O-])C=C2)C2=C(C(I)=C(I)C(I)=C2I)C(=O)O1

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¹HNMR

IR1

    Assign.     Shift(ppm)

      A             7.83
      B             7.80
      C             7.588
      D             7.525
      E             7.215

Spectral Code: 1H NMR : 400 MHz in DMSO-d6

Spectral Code: IR : KBr disc

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