2,2',4,4'-Tetrahydroxybenzophenone, 500mg Back Catalog number: 682235 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 34541 Chlorodifluoromethane Price on request 2883.29-5UG 17ß(H),18 alpha(H)-28-Nor-spergulane, neat, Solvent-neat, Unit ca. 5µg, # of units-1, Cas.no. Price on request 1737.13-10MG 9-Hydroxyfluorene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 1689-64-1 Price on request