Labelled Compounds BDE/PBB# Concentration2,4,4’-TriBDE(13C12,99%).28.7.5ng/mL2,2’,4,4’-TetraBDE (13C12,99%). 47. 7.5 ng/mL2,2’,4,4’,6-PentaBDE (13C12,99%). 100. 7.5 ng/mL2,2’,4,4’,5-PentaBDE (13C12,99%). 99. 7.5 ng/mL2,2’,4,4’,5,6’-HexaBDE (13C12,99%) 15