The red-fluorescent Lissamine Rhodamine B Ethylenediamine is a mixture of isomers. It is used for modifying carboxy-containing biomolecules. It can also be reversibly coupled to aldehydes and ketones to form a Schiff base - which can be reduced to a generate stable amine derivative by sodium borohydride (NaBH4) or sodium cyanoborohydride (NaCNH3). Its fluorescence emission spectrum lies between those of tetramethylrhodamines and X-rhodamines, and it can be well excited by 568 nm line of the Ar-Kr mixed gas laser that is used in many confocal laser-scanning microscopes.
||Lissamine Rhodamine B Ethylenediamine
||Sulforhodamine B ethylenediamine
||For Research Use Only