Multi-Element Standard Back Catalog number: 50729 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2506.12-50-IO 5,5'-Difluoro-2,2',4,4'-tetrabromodiphenyl ether (2,2',4,4'-Tetrabromo-5,5'-difluorodiphenyl ether), 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 886748-32-9 Price on request 73407 1,3,5-Trioxane Price on request 682489 3-Heptanone, 1000mg Price on request