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Showing 1 to 4 of 4 for “"Monoazo Dyes"”.
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Novel near-infrared absorbing dyes
… to 4-nitrobenzenediazonium chloride to give monoazo dyes. The λmax values of these gave a qualitative indication of relative electron donor strengths, and the 1-ethyl-2-methylperimidine azo dyes proved to be the most bathochromic, being blue in colour. The dyes were amongst the most …
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The synthesis and examination of Azo dyes derived from novel couplers
… and examination of several series of azo dyes of general structure (I) where Y incorporates the terminal nitrogen atom in a five- or six-membered saturated heterocyclic ring system, and Ar is an aromatic carbocyclic or heterocyclic residue, often containing substituent groups. Results are …