d4 C27 alpha alpha alpha (20R)-Cholestane, 100µg/mL in Isooctane, 1ml

2,2',4,5,5'-Pentabromo-4'-methoxydiphenyl ether, 1.2ml x 50ug/ml, nonane

Sulfide (S)

EPA 604, Surrogate Standard as PFB derivatives S-4375 1 Analyte, 200 µg/mL in methanol, 5mL or 1mg/mL in isopropanol, 1mL 2,4,6-Tribromophenol-PFB