A camelid single-domain antibody (sdAb, called Nanobody by Ablynx, the developer) is a peptide chain of about 110 amino acids long, comprising one variable domain of a heavy-chain antibody, these are called VHH fragments. Like a whole antibody, it is able to bind selectively to a specific antigen. Single-domain antibodies allow a broad range of applications in biotechnical as well as therapeutic uses due to their small size, simple production and high affinity. GenScript MonoRab™ Rabbit Anti-Camelid VHH Cocktail [iFluor 647] is iFluor 647 conjugated MonoRab™ Rabbit Anti-Camelid VHH Cocktail. The Cocktail is a unique secondary antibody, composed of several rabbit anti-Camelid VHH monoclonal antibodies.