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

Anthraquinone, 100 µg/ml, Acetonitrile, 5ml

1-Methoxy-2-propanol, 1000µg/ml in MeOH, 1ml

Thioxanthone, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 492-22-8