2,2’,3,3’,4,5-Hexachlorobiphenyl (129)

n-Hexacosane, ?13C: - 34.35, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 630-01-3

N-Nitrosodi-n-butylamine, 2000µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 924-16-3

2,2',4,4'-Tetrabromo-6-methoxy[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane