Octabromodiphenyl ether, techn.

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

2-Nitrophenol, 100 µg/ml, Methanol, 1ml

4-Amino-2´,3-dimethylazobenzene, certified, 0.25g