Goat anti-human IgE (ε chain) - Affinity Pure, DyLight?550 Conjugate is a secondary antibody conjugated to DyLight? 550, which binds to all human IgE (ε chain) in immunological assays. DyLight? 550 has Amax = 562 nm, Emax = 576 nm. Antibodies are are affinity purified using solid phase human IgE.DyLight? is a registered trade mark of Thermofisher Inc., and its subsidaries.