D8-4,4'-DDD, 100 µg/ml, Acetone, 1ml

Dibromotoluene, 5000µg/mL in MeOH, 1ml

Silica (SiO2), 1000µg/ml in Water/0.5% NaOH, 100ml

n-Pentatriacontane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 630-07-9