Biotiums goat anti-human IgG, Fc gamma specific antibody is labeled with CF543 dye. CF dyes are Biotiums line of next-generation fluorescent dyes with advantages in brightness, photostability, and conjugate specificity compared to other fluorescent dyes. Orange fluorescent CF543 dye has excitation/emission at 541/560 nm. The antibody reacts specifically with the human IgG heavy chains and not with light chains or F(ab)2 fragment of human immunoglobulins. To minimize cross-reactivity, it has been adsorbed against bovine, horse, mouse and rabbit serum IgG prior to conjugation.