Non-Fluorescent Modification Labeling Reagents

Biotin Active Esters
These reagents are used to attach a biotin label to amine groups for subsequent detection through enzyme-labeled streptavidin or streptavidin conjugates.


Methylene Blue Active Ester
Methylene Blue is an electrochemical reporter when conjugated to aptamers. Its absorption maximum is approximately 670 nm. The active ester is used to couple to amine groups.