BTEX Standard Back Catalog number: 92793 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678218 Isoproturon-desmethyl, 100 µg/ml, Acetonitrile, 1ml Price on request 8910.14 5-Methyl-2,2',4,5'-tetrachlorodiphenylmethane, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. Price on request MF5CWDS PCDF Window Defining Mixture for DB5/BP5/HP2/Rtx-5/SPB-5, 1.2mL, nonane Price on request