Vardenafil hydrochloride trihydrate, certified, 0.1g

PCB Isomer Standard, 100µg/ml in Isooctane, 1ml

4'-Fluoro-2,3',6-tribromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 863314-86-7

S-Metolachlor Metabolite CGA 368208, 100 µg/ml, M