Theobromine Cas number 83-67-0 Molecular Fungal Chitosan Manufacturer formula C7H8N4O2 The molecular weight of 180.16 Alias KeKeDou alkali, 3, 7 - dihydro - 3, 7 - dimethyl - 1 h - purines - 2, 6-2 2, 6 - Dihydroxy - 3, 7 - dimethylpurine 3, 7 - Dimethylxanthine Properties white monoclinic Quercetin Dihydrate Manufacturer form needle crystal powder. Slightly soluble in water, moderately soluble in amine, virtually insoluble in benzene, ether, chloroform and carbon tetrachloride. 1 g of this product can dissolve in about 2000 ml water, 150 ml boiling water 2220 ml95 % ethanol. Soluble in alkali hydroxide, strong acid and alkaline phosphate 20% aqueous solution. After the methylation is the caffeine. Melting point: 290-295 ℃ Sublimation point: 290-295 ° C Appearance Appearance white crystalline powder Infrared spectrum identification of Berberine Hydrochloride Factory Infrared spectrometry and reference substance Purity of 99.0% or higher Thyroid Powder Factory Purity (neutralization titration) Purity 99.0% or higher Purity (HPLC) The experimental Solubility in Sodium alkali Solubility hydrxide transparent solution Dry damage Loss on drying storage Use phosphodiesterase inhibitor. Weak adenosine receptor antagonist, smooth muscle relaxant. Medicine, theobromine has diuretic, myocardial excited, vasodilatation, smooth muscle relaxation, and so on.