D8-4,4'-DDE, 100 µg/ml, Acetone, 1ml

Thiophene in Thiophene-free Benzene Units: 5x1mL ampoule, 10mL screw-capped bottle Chiron No. Concentration Light White Mineral Oil µg thiophene/g (20 cSt at 40°C)

Spironolactone,100 µg/mL,MeOH,1mL,

PCB No. 21, 100µg/ml in Isooctane, 1ml