Tungsten (W) Back Catalog number: 58174 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8702.12-100-IO 2,2',4,4',5-Pentachlorobiphenyl, 100µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 38380-01-1 Price on request 70999 3-Ethyltoluene Price on request 79406 trans-Permethrin Price on request