2H-Pyran-3,5-dicarboxylic acid, tetrahydro-2-methylene-4,6-dioxo- 3,5-Diacetyltetrahydropyran-2,4,6 treated BSA 3,5-Diacetyltetrahydropyran-2,4,6 treated bovine serum albumin AIDS-189646 AIDS189646