2,4'-DDE, 100 µg/ml, Methanol, 1ml

alpha alpha alpha (20R,24S)-24-Methylcholestane, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 511-20-6

Etridiazole

Erythromycin-13C,d3, 1mg