Store at 2-5 degree C. Do not freeze! Protect from light. Product should retain activity for at least 12 months after shipping date when stored asrecommended. 50 mM Sodium Phosphate pH 7.5, 500 mM Potassium Chloride, 150mM NaCl, 15% Glycerol, 0.2% BSA, 0.04%NaN3 (as a preservative). Protein A purified antibody from tissue culture supernatant wasconjugated to R-Phycoerythrin through a sulfo-ester linkage.Unconjugated antibody was removed using size exclusionchromatography. Antibody conjugate is at 500ug/ml with anA565/A280 ratio of 2.83.