1) Cat. No.: TRC-H615150; 2) Chemical Name: Homo Sildenafil; 3) CAS No.: 642928-07-2; 4) Mol. Formula: C23H32N6O4S; 5) Mol. Weight: 488.6; 6) Packing Size: 2.5mg / 25mg; 7) Appearence: White to Off-White Solid; 8) Application Notes: A new analogue of Sildenafil.; 9) Synonym: 5-[2-Ethoxy-5-[(4-ethyl-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-methyl-3-propyl-7H-pyrazolo[4,3-d]pyrimidin-7-one; ; 10) Solubility: Chloroform, Dichloromethane, Methanol; 11) Storage condition: -20°C Freezer; 12) References: Koh, H., et al.: Drug Saf., 23, 351 (2000), Daraghmeh, N., et al.: J. Pharm. Biomed. Anal., 25, 483 (2001), Tseng, M., et al.: J. Food Drug Anal., 10, 112 (2002), Gratz, S., et al.: J. Pharm. Biomed. Anal., 36, 525 (2004),