13C4-Fipronil, 100 µg/ml, Acetonitrile, 1ml

Octyl methoxycinnamate, 100µg/ml in MeOH, 1ml

2,3,3',4,4',5-Hexachlorobiphenyl, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 38380-08-4

Theophylline, 100µg/ml in MeOH, 5ml