Arsenic (As) Back Catalog number: 58033 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2237.17-050-AN Aflatoxin M1, 0.5 µg/ml, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 6795-23-9 Price on request 95424A MSTFA Price on request 0177.15-500-IO 2-n-Propyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 147792-30-1 Price on request