EPA Method 601 Internal Standard

1,2,5,6,9,10-Hexabromocyclododecane, 100 µg/ml, M

D7-o-Toluic acid, 50mg

9-Nitrophenanthrene-d9, 10µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no.