3,3',4,5'-Tetrabromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

EPA Method 502/524 High Conc VOC Mix #8, 2000µg/ml in MeOH, 1ml

iso-Butyl benzyl phthalate (2-Methylpropyl benzyl phthalate), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 72170-45-7

Parathion-ethyl, 100µg/ml in Acetonitrile, 5ml