3,4,4',5-Tetrachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Sildenafil citrate,100 µg base/mL,MeOH,1mL

4-Chlorobenzophenone, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 134-85-0

4,4'-DDE, 10.0 µg/ml, Ethyl acetate, 10ml