Donkey anti-Goat IgG (H&L) - DyLight 550 Conjugated, min cross reactivity to human, mouse, rabbit or rat IgG is a secondary antibody conjugated to DyLight 550, which binds to all goat IgGs in immunological assays. DyLight 550 has Amax = 562 nm, Emax = 576 nm. Antibodies are are affinity purified using solid phase goat IgG.DyLight is a registered trade mark of Thermofisher Inc., and its subsidaries.