Butralin, 100 µg/ml, Ethyl acetate, 5ml

2,3,3',4,5,5'-Hexachloro-4'-methoxy[13C12]biphenyl, 1.2ml x 50ug/ml, toluene

2-Aminofluorene-d11, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 34741-44-5

n-Butyl-iso-butyl phthalate-3,4,5,6-d4 (n-Butyl-2-methylpropyl phthalate-3,4,5,6-d4), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.