4,4-DDD standard

2,3-Dichlorodibenzofuran, 1.2ml x 50ug/ml, nonane

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

2-Nitro-4-diphenylenediamine, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 3694-52-8