Atenolol, 100 µg/ml, Methanol, 1ml

Fensulfothion-oxon, 100 µg/ml, Toluene, 1ml

2,4',5-Trichlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 16606-02-3

Arsenic (As)