4Arm-PEG-RB (MW 2000)

4Arm-PEG-RB (MW 2000) [4Arm-PEG-Rhodamine B (MW 2000) ] is a four-armed fluorescent dye composed of Rhodamine B and PEG. It is suitable for applications in drug delivery and fluorescence imaging, with excitation and emission wavelengths of 546 nm and 610 nm, respectively.