Levonorgestrel, 100µg/mL in Acetonitrile, 1ml

Omethoate, 100 µg/ml, Acetonitrile, 5ml

4-n-Octylphenol, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1806-26-4

2,3,3',4,4',5,5'-Heptabromobiphenyl, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 88700-06-5