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

2,2',4,4',5,5'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Flurenol-butyl,100 µg/mL,MeOH,1mL,

24-Ethyl-5ß(H)-cholestan-3ß-ol, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 4736-91-8