Tungsten (W) Back Catalog number: 58074 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 95640 Nitrosamines Standard Price on request 70319 1,2,3,5-Tetrachlorobenzene, 1000µg/ml in MeOH, 1ml Price on request 1133.13-K-IO n-Tridecane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 629-50-5 Price on request