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

n-Valerophenone, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 1009-14-9

Ergosterol, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 57-87-4

EPA Method 524 & 624 - Internal Standard