2,4'-DDT, 100 µg/ml, Ethyl acetate, 5ml

Dibenzothiophene in Xylene Units: 5x1mL ampoule, 1x10mL screw cap bottle Chiron No. (Matrix) Concentration Isooctane Xylene White oil 3 cst µgS/g (ppm) Wt.% S-4055-0-IO S-4054-0-XY S

Levetirazetam-d6, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no.

2,3,7,8-Tetrabromo[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene