Purity of this preparation is > 95% based on SDS-PAGE. Antibody concentration is > 4.5 mg/ml (E 1% at 280 nm = 13.0). Antibody is supplied in 10 mM sodium phosphate, 0.15 M sodium chloride, pH 7.2. Contains 0.05% (w/v) sodium azide as preservative of bacterial growth.Based on immunoelectrophoresis, this antibody reacts with:  heavy chains on rabbit IgG,  light chains on all rabbit immunoglobulins. Based on immunoelectrophoresis, no reactivity is observed to:  non-immunoglobulin rabbit serum proteins.