Methylhydrazine

2,2',4,4',6-Pentabromo-6'-hydroxy[13C12]diphenyl ether, 1.2ml x 50ug/ml, toluene

Demeton-O, 10.0 µg/ml, Cyclohexane, 10ml

d2 C27 alpha alpha alpha (20R)-Cholestane, 10µg/mL in Isooctane, 1ml