5-Propargylamino-3'-azidometl-dUTP tristrietlamine is a nucleotide molecule that can be used in DNA synthesis and DNA sequencing. For detailed information, refer to compound 5 in patent document WO2004018497A2. It contains an azide group, which can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing alkyne groups. It can also react with molecules containing DBCO or BCN groups through strain-promoted alkyne-azide cycloaddition (SPAAC).
References:
[1]. Milton J, et, al. Modified nucleotides for polynucleotide sequencing. WO2004018497A2.