4,4'-Diisocyanato-3,3'-dimethylbiphenyl

EPA 8041A Surrogate Standard S-4382 1mg/mL in isopropanol, 1 mL, 5 x 1mL, 5mL 2,4-Dibromophenol

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

2,4'-DDT, 100µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 789-02-6