1) Cat. No.: TRC-S435002; 2) Chemical Name: Sildenafil-d3; 3) CAS No.: 1126745-90-1; 4) Mol. Formula: C22H27D3N6O4S; 5) Mol. Weight: 477.6; 6) Packing Size: 1mg / 10mg; 7) Appearence: White Solid; 8) Application Notes: Labelled Sildenafil, an orally active selective type 5 cGMP phosphodiesterase inhibitor.; 9) Synonym: 1-[[3-(4,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxyphenyl]sulfonyl]-4-methylpiperazine-d3; 5-[2-Ethoxy-5-[[4-(methyl-d3)-1-piperazinyl]sulfonyl]phenyl]-1,6-dihydro-1-methyl-3-propyl-7H-pyrazolo[4,3-d]pyrimidin-7-one;; 10) Solubility: DMSO, Methanol; 11) Storage condition: -20°C Freezer; 12) References: Terrett, N.K., et al.: Bioorg. Med. Chem. Lett., 6, 1819 (1996), Goldstein, I., et al.: N. Engl. J. Med., 338, 1397 (1998),