Mono-ethyl phthalate (ring-1,2-13C2,99%, dicarboxyl-13C2,99%) 100 µg/mL in MTBE

gamma-BHC, 1000μg/ml in MeOH, 1ml

Sulfosulfuron, 100 µg/ml, Acetonitrile, 5ml

(24R)-24-Ethylcholest-8(14)-ene, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 108881-85-2