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Synthesis 1988; 1988(8): 635-636
DOI: 10.1055/s-1988-27662
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An Improved Synthesis of the Solvatochromic Dye ET-30

Manfred A. Kessler* , Otto S. Wolfbeis
  • *Analytical Division, Institute of Organic Chemistry, Karl-Franzens University, A-8010 Graz, Austria
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Publication Date:
20 August 2002 (online)

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An improved synthesis of the well-known dye ET-30, which is used as a standard for the characterization of solvent polarity, using easily available starting materials is described.