title: Brightly fluorescent purple and blue labels for amines and proteins.
abstract: Novel amino-reactive phenoxazines were obtained by reasonably simple synthetic protocols and characterized in terms of their use as fluorescent labels for amines, amino acids and proteins in general. Purple labels (alternatives to Texas Red) and blue labels (alternatives to Cy-1) were obtained by this strategy. The absorption/emission maxima, in aqueous solution, are at around 589/630 nm and 648/670 nm, respectively, thus indicating larger Stokes' shifts than those of common cyanine-type of labels. The new labels are compatible with commercial diode laser light sources.
authors.affiliation: Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, D-93053 Regensburg, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Link
authors.forename: Péter
authors.initials: P
authors.lastname: Kele
authors.forename: Daniela E
authors.initials: DE
authors.lastname: Achatz
authors.forename: Otto S
authors.initials: OS
authors.lastname: Wolfbeis
mesh_terms: D000588:Amines / Q000737:chemistry*; D000596:Amino Acids / Q000737:chemistry; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry*; D015394:Molecular Structure; D010078:Oxazines / Q000138:chemical synthesis / Q000737:chemistry*; D011506:Proteins / Q000737:chemistry*; D013237:Stereoisomerism; D014966:Xanthenes / Q000737:chemistry*
chemical_list: D000588:Amines; D000596:Amino Acids; D005456:Fluorescent Dyes; D010078:Oxazines; D011506:Proteins; D014966:Xanthenes; C034657:Texas red; C039203:phenoxazine