Tributyltin chloride, 250mg

Propoxur, 100µg/ml in Acetonitrile, 1ml

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

4-(tert-Octyl)phenol, 100µg/ml in MeOH, 1ml