BD Difco™ laboratory reagents include Freund’s complete and incomplete adjuvants for immunological research and selected antisera for microbiological identification. The adjuvants are commonly used in antigen-adjuvant emulsions for laboratory-animal studies. 263810: Complete Freund’s adjuvant; 6 per pack. 231131: Complete H37Ra adjuvant; 6 per pack. 263910: Incomplete Freund’s adjuvant; 6 per pack. 228911: Neisseria meningitidis antiserum, Group Z, 1 mL. 228371: Lyophilized Shigella polyvalent antiserum, Group D. For laboratory use. Select the exact BD catalog number required by your protocol.