2,3,5,6-Tetrabromo-p-xylene, 1.2ml x 50ug/ml , toluene Back Catalog number: PTBX Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 3374.6-100 Dichloran, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 99-30-9/81859-29-2 Price on request EPA-8290HRCC0.5 Supplemental Calibration Solution, 500ul, nonane Price on request 0224.26-200-T Dibenzo[b,ghi]perylene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 5869-30-7 Price on request