Donkey anti-Rabbit IgG (H&L) - Affinity Pure, DyLight633 Conjugate, min x w/bovine, chicken, goat, guinea pig, hamster, horse, human,mouse, rat or sheep IgG is a secondary antibody conjugated to DyLight 633, which binds to rabbit IgG (H&L) in immunological assays.DyLight 633 has Amax = 638 nm, Emax = 658 nm. Antibodies are affinity purified using solid phase rabbit IgG (H&L).DyLight is a registered trade mark of Thermofisher Inc., and its subsidaries.