Cas No. :83 -67-0
Molecular formula: C7H8N4O2
MW: 180.16
Alias: Keke bean base, 3,7 - dihydro -3,7 - dimethyl-1H-purine -2,6 - dione 2,6-Dihydroxy-3 ,7-dimethylpurine 3,7-Dimethylxanthine
Single-trait oblique white needle crystal powder. Slightly soluble in water, moderately soluble amines, in fact, not soluble in benzene, ether, carbon tetrachloride and chloroform. 1g product can be dissolved in about 2000ml water, 150ml boiling water 2220ml95% ethanol. Soluble in alkali hydroxide, concentrated acid and 20% sodium hydroxide solution. Methylation after the caffeine.
Melting point: 290-295 ℃
Sublimation point: 290-295 ° C
Appearance: white crystalline powder
Purity: Purity ≥ 99.0% (in titration)
Purity: Purity ≥ 99.0% (HPLC)
Alkali: Transparent solution
Storage:
Use of phosphodiesterase inhibitor; weak adenosine receptor antagonist, smooth muscle relaxant. Theobromine have a diuretic medicine, myocardial excited, vasodilation, smooth muscle relaxation and so on. |