Parathion-methyl, 10.0 µg/ml, Acetonitrile, 10ml

3,4-Dimethylthiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 632-15-5

2,3,3',4,4',5,5'-Heptachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

o-Terphenyl