product Name: Theophylline 
Synonyms： Theophylline anhydrous; 
Molecular Formula： C7H10N4O2 
Molecular Weight: 182.1799 
CAS Registry Number: 58-55-9 
EINECS: 200-385-7 
Density :1.62g/cm3 
Melting point: 270-274 c
Boiling point: 390.1C at 760 mmHg 
Refractive index: 1.737 
Flash point: 189.7 C 
Water solubility: 8.3 g/L (20c) 
Vapour Pressur:2.72E-06mmHg at 25 C 
packaging:25kg/cardboard
Quality standards:CP2010
usage: Pharmaceutical raw materials