An easy and efficient solid-phase synthesis strategy to obtain rapidly water-soluble chromophores/fluorophores in highly pure form has been developed. This first successful use of N-Fmoc-α-sulfo-β-alanine as a SPPS building block opens the way to the future development of promising direct "on-resin" peptide labelling and water-solubilising methods.

N-Fmoc--sulfo--alanine effectively enables rapid water-soluble chromophores and fluorophores in highly pure form, offering potential for future direct "on-resin" peptide labelling and water-solubilizing methods.

Paper

N-Fmoc-α-sulfo-β-alanine: a versatile building block for the water solubilisation of chromophores and fluorophores by solid-phase strategy.

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