Sildenafil citrate,1000 µg base/mL,MeOH,1mL

Dicrotophos, 10.0 µg/ml, Ethyl acetate, 10ml

2-Nitrophenanthrene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 17024-18-9

4-Methylheptane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 589-53-7