Goat purified IgG fraction of antiserum to Human Immunodeficiency virus. The immunogen is confirmed human isolate. Does not react with T4+ human lymphocytes. Purity is >95% IgG and is supplied at a concentration of 4-5mg/mL in 0.01M PBS, pH 7.2 with 0.1% sodium azide. Recommend short term storage at 2-8°C or frozen for long term.