Mix-n-StainTM CF® Dye Nanobody Thiol Labeling Kits are optimized for labeling nanobodies with bright and photostable CF® dyes in 2 hours with no purification. Kits tolerate common stabilizers. Far-red/near-IR CF®680 dye has Ex/Em at 681/698 nm. One labeling of 20-50 ug Nanobody Thiol per kit.