CAS: 330784-47-9 Character: White to Off-White Cyrstalline Solid. Assay: 99% min. Formulae hypotheticae: C23H26ClN7O3 Molecular Weight: 483.9506 Consuetudinem: Used for the treatment of erectile dysfunction. A phosphodiesterase 5 inhibitor. Store: Store at room temperature away from moisture, heat, and light.