Instrument Standard 4

(-)-α-1R,2R,5S,6R,9R,10S-Hexabromocyclododecane, 1.2ml x 50ug/ml, toluene

alpha-Hydroxymetoprolol, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 56392-16-6

2,4-Dichloro-6-nitrophenol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 609-89-2