2,2’,3,4,4’,5’-Hexachlorobiphenyl (138) Back Catalog number: 66138 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 91915 Blank Soil - Organics Price on request 0694.29-100-IO 28-Norlup-17(22)-ene, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 53767-52-5 Price on request 675335 Dapson, 250mg Price on request