Product Description: Alexa Fluor 680 NHS ester is a near-infrared (NIR) fluorescent dye. The Alexa Fluor 680 group has an absorption maximum at 679 nm and an emission maximum at 720 nm[1].
Formula: C39H47BrN4O13S3
References: [1]Cheng KT, et al. Alexa Fluor 680-labeled transferrin-cationic (NBD-labeled DOPE-DOTAP) liposome-encapsulated gadopentetate dimeglumine complex. 2007 Oct 18 [updated 2007 Dec 17]. In: Molecular Imaging and Contrast Agent Database (MICAD) [Internet]. Bethesda (MD): National Center for Biotechnology Information (US); 2004–2013.