In direct ELISAs and Western blots, no cross-reactivity with recombinant human Siglec-2, -3, -5, -6, -7, -9, -10, -11, or recombinant mouse Siglec-F is observed. Reconstitute at 0.5 mg/mL in sterile PBS. Endoxin level is <0.10 EU per 1 μg of the antibody