Product Description: Alexa fluor 647 NHS ester can be used to label Alexa fluor 647 to the primary amines (R-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules[1].
Formula: C39H47N3O16S4
References: [1]Martin Lehmann, et al. Multicolor Caged dSTORM Resolves the Ultrastructure of Synaptic Vesicles in the Brain. Angew Chem Int Ed Engl. 2015 Nov 2;54(45):13230-5.