CD19 (clone SJ25C1) is a mouse monoclonal antibody that recognizes the human protein CD19. CD19 is a common marker of B cells, and is a B cell coreceptor. All antibody conjugates have been validated in flow cytometry. Each is supplied at 5 uL/test, with sufficient antibody for 25 (125uL) or 100 tests (500uL). These antibodies belong to the Biotium Choice list of select antibodies that have been validated and optimized in-house for optimal performance. • Blue fluorescent CF®405M dye has excitation/emission at 408/452 nm. • Green fluorescent CF®488A dye has excitation/emission at 490/515 nm. • Red fluorescent CF®575 dye has excitation/emission at 575/601 nm. • Far-red fluorescent CF®647Plus dye has excitation/emission at 652/668 nm. • Near-infrared CF®700 dye has excitation/emission at 695/720 nm. • Near-infrared APC-Astral™813 Conjugate dye has excitation/emission at 788/813 nm. • Far-red fluorescent RPE-Astral™616 dye has excitation/emission at 565/617 nm.