Sildenafil citrate, 100mg Back Catalog number: 681151 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 53066 Spiking Standard 3 Price on request M3139 Methacrylic Anhydride [stabilized with 1,1,3-Tris(3-tert-butyl-4-OH-6-methylphenyl)butane], 100g Price on request 679375 Chlorpyrifos-methyl, 10.0 µg/ml, Cyclohexane, 10 Price on request