As eries of fluorescent boron-dipyrromethene (BODIPY,4,,4a-diaza-s-indacene)d yes have been designed to participate, as aglycons, in synthetic oligosaccharide protocols. As such, they served ad ual purpose:f irst, by being incorporated at the beginning of the process( at the reducing-endof the growing saccharide moiety), they can function as fluorescent glycosyl tags, facilitating the detection and purification of the desired glycosidic intermediates,a nd secondly,t he presence of these chromophores on the ensuing compounds grants access to fluorescently labeled saccharides. In this context, as ought-after feature of the fluorescent dyes has been their chemical robustness. Accordingly, some BODIPY derivatives described in this work can withstand the reactionc onditions commonly employed in the chemical synthesiso fs accharides;n amely, glycosylation and protecting-group manipulations. Regarding their photophysical properties,t he BODIPY-labeled saccharides obtained in this work display remarkable fluorescence efficiency in water,r eaching quantum yield values up to 82 %, as well as notable lasing efficienciesa nd photostabilities.[a] Dr.

Chemically robust, fluorescent boron‐dipyrromethene (BODIPY) dyes can be employed as aglycons in the synthesis of fluorescently‐labeled oligosaccharides. They withstand the reaction conditions commonly used in these protocols: glycosylation and protecting‐group manipulations. Additionally, the BODIPY aglycon plays a dual role as: i) a glycosyl tag facilitating the visualization of the intermediate saccharides; and ii) as the fluorescent label in the target saccharide. The cover artwork was kindly created by Guillermo Corrales. More information can be found in the Full Paper by J. Bañuelos, A. M. Gómez, J. C. Lopez et al. on page 5388.