Name: two hydroxypropyl theophylline
Color properties: white crystalline powder
Chemical name: 1,3- two methyl 7- (2,3- dihydroxypropyl) -3,7- two hydrogen -1H- purine 2,6- two ketone.
Melting point: the melting point of 158 DEG C (159-163.5 C).
This product is two 1,3- methyl 7- (2,3- dihydroxypropyl) -3,7- two hydrogen -1H- purine 2,6- two ketone.
According to the dry matter calculation, C10H14N4O4 containing not less than 98%.
This product with aminophylline belong to xanthine oxidase bronchiectasis medicine, suitable for the treatment of bronchial asthma, asthmatic bronchitis and emphysema, and also can be used for preventing the attack of bronchial asthma, but also can be used for the treatment of angina pectoris and cardiac edema. Theophylline is xanthine drug representative varieties, in order to improve the solubility of theophylline and aminophylline (salt development of theophylline and ethylenediamine (salt), theophylline theophylline and choline (two), hydroxypropyl theophylline theophylline N-7 bit derivatives) etc.. Two hydroxypropyl theophylline solubility in water than aminophylline is big, but the role of a theophylline weak, its toxicity is about aminophylline 1/5. After oral LD50 3400 mg / public