Product Description: Rhodamine B base (Solvent red 49) is a fluorescent dye (Ex=543 nM; Em=565 nM)[1].
Formula: C28H30N2O3
References: [1]Bakkialakshmi S, et al. Fluorescence quenching of Rhodamine B base by two amines. Spectrochim Acta A Mol Biomol Spectrosc. 2013 Mar 15;105:557-62.