Arsenic (As) Back Catalog number: 50439 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1926.12-50-IO 4'-Fluoro-2,3',4-tribromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 863314-85-6 Price on request 73460 Xanthene Price on request 73300 2,4’-Dichlorobenzophenone Price on request