We are offering Theophylline.CAS NO: 58-55-9 Appearance: white crystalMF: C7H8N4O2MW: 180.16Packing:5kgaluminum can or according to your packing demandUsage: relaxing bronchial smooth muscle, increasing heart muscle contractility and efficiency; as a positive inotropic, increasing heart rate: positive chronotropic, increasing blood pressure, increasing renal blood flow, some anti-inflammatory effects, central nervous system stimulatory effect mainly on the medullary respiratory center