beta-Endosulfan, 100 µg/ml, Ethyl acetate, 5ml

Phenanthrene-d10, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 1517-22-2

Trazodone hydrochloride, 1000mg

2,3,4,4'-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL,