Arsenic (As) Back Catalog number: 50439 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50829 Laboratory Spike Solution Price on request 680278 Glycerol, 1ml Price on request 8750.12-5MG 4,4'-Dibromodiphenyl ether, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 2050-47-7 Price on request