Oxadixyl, 10 µg/ml, Ethyl acetate, 10ml

2-Butanol, certified, 5ml

2,3',4,4',5-Pentachloro-3-methoxybiphenyl, 1.2ml x 50ug/ml, nonane

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