Leptophos, 100 µg/ml, Ethyl acetate, 5ml

4,6-Dihydroxypyrazolo[3,4-d]pyrimidine-13C,15N2, 1mg

Lisinopril dihydrate,100 µg base/mL,MeOH,1mL,

4-Chloro-3-methylphenol, 100µg/ml in MeOH, 1ml