Sildenafil citrate, 100mg Back Catalog number: 681151 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 675121 Quinoclamine, 10 µg/ml, Acetonitrile, 10ml Price on request 8594.12 3-Amino-4-nitrobiphenyl, , Solvent-, Unit , # of units-, Cas.no. Price on request 0236.20-200-T Benzo[e]pyrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 192-97-2 Price on request