Arsenic (As) Back Catalog number: 57833 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1570.34-100MG Pseudomorphine (free base), neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 125-24-6 Price on request 95454 PCB Congeners & Hexachlorobenzene Mix #5 Price on request 1719.15-500-IO 4-Methylphenanthrene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 832-64-4 Price on request