4-Chlorodibenzofuran, 1.2ml x 50ug/ml, nonane Back Catalog number: DF-4-S Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 91564 Air Spiking Standard Price on request 3562.16-10MG 2,3-Dimethyl-9,10-anthraquinone, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 6531-35-7 Price on request 0237.24-200-T Dibenzo[e,l]pyrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 192-51-8 Price on request