RB-PEG-NH2 (MW 3400)

RB-PEG-NH2 (MW 3400) (Rhodamine B-PEG-NH2 (MW 3400) ) is a fluorescent dye composed of Rhodamine B , PEG and an amino group. The reactive primary amine or NH2 groups can react rapidly with activated carboxylic acids such as NHS esters to form stable amide bonds (Ex/Em = 546/610 nm).

CCN(CC)C1=CC=C2C(OC(C3=C2C4=CC=C(C5=CC=C(C(NCCOCCN)=O)C=C5)C=C4)=C/C(C=C3)=[N+](CC)/CC)=C1.[Cl-].[n]

Fluorescent Dye

Room temperature