2,2',4,4'-Tetrahydroxybenzophenone, 500mg Back Catalog number: 682235 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 73322 2,2,4-Trimethyl-1,3-pentanediol diisobutyrate Price on request 94782 EPA Method 1625 Semi-Volatile Standard Price on request 63056 2,3,3',4'-Tetrachlorobiphenyl (56) Price on request